Home / 1,318,755,898.98-1,819,886,721.60-724,078,901.25

Finding the Fourth Proportional to 1,318,755,898.98, 1,819,886,721.60 and 724,078,901.25

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Solution

The fourth proportional to 1,318,755,898.98, 1,819,886,721.60 and 724,078,901.25 is: 999,230,849.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,755,898.98 : 1,819,886,721.60 = 724,078,901.25 : x
  2. Step 2: Convert to fraction form
    1,318,755,898.98/1,819,886,721.60 = 724,078,901.25/x
  3. Step 3: Cross multiply
    1,318,755,898.98x = 1,819,886,721.60 × 724,078,901.25
  4. Step 4: Simplify right side
    1,318,755,898.98x = 1,317,741,577,775,592,448
  5. Step 5: Solve for x
    x = 1,317,741,577,775,592,448/1,318,755,898.98
  6. Step 6: Final answer
    x = 999,230,849.92

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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.