Home / 12,908,695,114.31-17,813,818,178.84-7,193,220,436.67

Finding the Fourth Proportional to 12,908,695,114.31, 17,813,818,178.84 and 7,193,220,436.67

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Solution

The fourth proportional to 12,908,695,114.31, 17,813,818,178.84 and 7,193,220,436.67 is: 9,926,543,298.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,908,695,114.31 : 17,813,818,178.84 = 7,193,220,436.67 : x
  2. Step 2: Convert to fraction form
    12,908,695,114.31/17,813,818,178.84 = 7,193,220,436.67/x
  3. Step 3: Cross multiply
    12,908,695,114.31x = 17,813,818,178.84 × 7,193,220,436.67
  4. Step 4: Simplify right side
    12,908,695,114.31x = 128,138,720,979,080,757,248
  5. Step 5: Solve for x
    x = 128,138,720,979,080,757,248/12,908,695,114.31
  6. Step 6: Final answer
    x = 9,926,543,298.48

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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.