Home / 186,787,669.60-279,803,590.80-129,344,802.40

Finding the Fourth Proportional to 186,787,669.60, 279,803,590.80 and 129,344,802.40

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Solution

The fourth proportional to 186,787,669.60, 279,803,590.80 and 129,344,802.40 is: 193,755,509.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,787,669.60 : 279,803,590.80 = 129,344,802.40 : x
  2. Step 2: Convert to fraction form
    186,787,669.60/279,803,590.80 = 129,344,802.40/x
  3. Step 3: Cross multiply
    186,787,669.60x = 279,803,590.80 × 129,344,802.40
  4. Step 4: Simplify right side
    186,787,669.60x = 36,191,140,162,836,464
  5. Step 5: Solve for x
    x = 36,191,140,162,836,464/186,787,669.60
  6. Step 6: Final answer
    x = 193,755,509.88

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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.