Home / 1,274,449,015.72-1,758,506,170.52-709,919,848.61

Finding the Fourth Proportional to 1,274,449,015.72, 1,758,506,170.52 and 709,919,848.61

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Solution

The fourth proportional to 1,274,449,015.72, 1,758,506,170.52 and 709,919,848.61 is: 979,559,338.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,274,449,015.72 : 1,758,506,170.52 = 709,919,848.61 : x
  2. Step 2: Convert to fraction form
    1,274,449,015.72/1,758,506,170.52 = 709,919,848.61/x
  3. Step 3: Cross multiply
    1,274,449,015.72x = 1,758,506,170.52 × 709,919,848.61
  4. Step 4: Simplify right side
    1,274,449,015.72x = 1,248,398,434,355,309,312
  5. Step 5: Solve for x
    x = 1,248,398,434,355,309,312/1,274,449,015.72
  6. Step 6: Final answer
    x = 979,559,338.16

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Double scale
Find fourth proportional to 1,274,449,016.72, 1,758,506,171.90 and 709,919,849.61
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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.