Home / 86,208,051.30-129,312,076.95-76,854,689.70

Finding the Fourth Proportional to 86,208,051.30, 129,312,076.95 and 76,854,689.70

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Solution

The fourth proportional to 86,208,051.30, 129,312,076.95 and 76,854,689.70 is: 115,282,034.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,208,051.30 : 129,312,076.95 = 76,854,689.70 : x
  2. Step 2: Convert to fraction form
    86,208,051.30/129,312,076.95 = 76,854,689.70/x
  3. Step 3: Cross multiply
    86,208,051.30x = 129,312,076.95 × 76,854,689.70
  4. Step 4: Simplify right side
    86,208,051.30x = 9,938,239,548,454,774
  5. Step 5: Solve for x
    x = 9,938,239,548,454,774/86,208,051.30
  6. Step 6: Final answer
    x = 115,282,034.55

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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.