Home / 144,838,951.17-199,881,540.80-78,763,313.94

Finding the Fourth Proportional to 144,838,951.17, 199,881,540.80 and 78,763,313.94

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Solution

The fourth proportional to 144,838,951.17, 199,881,540.80 and 78,763,313.94 is: 108,695,433.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,838,951.17 : 199,881,540.80 = 78,763,313.94 : x
  2. Step 2: Convert to fraction form
    144,838,951.17/199,881,540.80 = 78,763,313.94/x
  3. Step 3: Cross multiply
    144,838,951.17x = 199,881,540.80 × 78,763,313.94
  4. Step 4: Simplify right side
    144,838,951.17x = 15,743,332,547,841,912
  5. Step 5: Solve for x
    x = 15,743,332,547,841,912/144,838,951.17
  6. Step 6: Final answer
    x = 108,695,433.25

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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.