Home / 1,245,765,349.71-1,868,833,834.19-458,758,489.83

Finding the Fourth Proportional to 1,245,765,349.71, 1,868,833,834.19 and 458,758,489.83

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Solution

The fourth proportional to 1,245,765,349.71, 1,868,833,834.19 and 458,758,489.83 is: 688,206,159.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,765,349.71 : 1,868,833,834.19 = 458,758,489.83 : x
  2. Step 2: Convert to fraction form
    1,245,765,349.71/1,868,833,834.19 = 458,758,489.83/x
  3. Step 3: Cross multiply
    1,245,765,349.71x = 1,868,833,834.19 × 458,758,489.83
  4. Step 4: Simplify right side
    1,245,765,349.71x = 857,343,387,513,919,232
  5. Step 5: Solve for x
    x = 857,343,387,513,919,232/1,245,765,349.71
  6. Step 6: Final answer
    x = 688,206,159.94

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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.