Home / 979,949,853.60-1,469,924,780.40-434,691,387.60

Finding the Fourth Proportional to 979,949,853.60, 1,469,924,780.40 and 434,691,387.60

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Solution

The fourth proportional to 979,949,853.60, 1,469,924,780.40 and 434,691,387.60 is: 652,037,081.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,949,853.60 : 1,469,924,780.40 = 434,691,387.60 : x
  2. Step 2: Convert to fraction form
    979,949,853.60/1,469,924,780.40 = 434,691,387.60/x
  3. Step 3: Cross multiply
    979,949,853.60x = 1,469,924,780.40 × 434,691,387.60
  4. Step 4: Simplify right side
    979,949,853.60x = 638,963,642,459,701,376
  5. Step 5: Solve for x
    x = 638,963,642,459,701,376/979,949,853.60
  6. Step 6: Final answer
    x = 652,037,081.40

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.