Home / 12,908,695,118.18-17,813,818,184.19-7,193,220,440.54

Finding the Fourth Proportional to 12,908,695,118.18, 17,813,818,184.19 and 7,193,220,440.54

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Solution

The fourth proportional to 12,908,695,118.18, 17,813,818,184.19 and 7,193,220,440.54 is: 9,926,543,303.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,908,695,118.18 : 17,813,818,184.19 = 7,193,220,440.54 : x
  2. Step 2: Convert to fraction form
    12,908,695,118.18/17,813,818,184.19 = 7,193,220,440.54/x
  3. Step 3: Cross multiply
    12,908,695,118.18x = 17,813,818,184.19 × 7,193,220,440.54
  4. Step 4: Simplify right side
    12,908,695,118.18x = 128,138,721,086,578,638,848
  5. Step 5: Solve for x
    x = 128,138,721,086,578,638,848/12,908,695,118.18
  6. Step 6: Final answer
    x = 9,926,543,303.83

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Double scale
Find fourth proportional to 12,908,695,119.18, 17,813,818,185.57 and 7,193,220,441.54
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.