Home / 638,971,809.30-958,457,713.95-570,097,055.70

Finding the Fourth Proportional to 638,971,809.30, 958,457,713.95 and 570,097,055.70

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Solution

The fourth proportional to 638,971,809.30, 958,457,713.95 and 570,097,055.70 is: 855,145,583.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,971,809.30 : 958,457,713.95 = 570,097,055.70 : x
  2. Step 2: Convert to fraction form
    638,971,809.30/958,457,713.95 = 570,097,055.70/x
  3. Step 3: Cross multiply
    638,971,809.30x = 958,457,713.95 × 570,097,055.70
  4. Step 4: Simplify right side
    638,971,809.30x = 546,413,920,735,847,872
  5. Step 5: Solve for x
    x = 546,413,920,735,847,872/638,971,809.30
  6. Step 6: Final answer
    x = 855,145,583.55

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Double scale
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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.