Home / 156,776,920.62-216,357,714.95-86,217,895.35

Finding the Fourth Proportional to 156,776,920.62, 216,357,714.95 and 86,217,895.35

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Solution

The fourth proportional to 156,776,920.62, 216,357,714.95 and 86,217,895.35 is: 118,983,755.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,776,920.62 : 216,357,714.95 = 86,217,895.35 : x
  2. Step 2: Convert to fraction form
    156,776,920.62/216,357,714.95 = 86,217,895.35/x
  3. Step 3: Cross multiply
    156,776,920.62x = 216,357,714.95 × 86,217,895.35
  4. Step 4: Simplify right side
    156,776,920.62x = 18,653,906,825,293,140
  5. Step 5: Solve for x
    x = 18,653,906,825,293,140/156,776,920.62
  6. Step 6: Final answer
    x = 118,983,755.72

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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.