Home / 138,788,281.14-191,528,961.57-76,909,652.82

Finding the Fourth Proportional to 138,788,281.14, 191,528,961.57 and 76,909,652.82

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Solution

The fourth proportional to 138,788,281.14, 191,528,961.57 and 76,909,652.82 is: 106,135,949.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,788,281.14 : 191,528,961.57 = 76,909,652.82 : x
  2. Step 2: Convert to fraction form
    138,788,281.14/191,528,961.57 = 76,909,652.82/x
  3. Step 3: Cross multiply
    138,788,281.14x = 191,528,961.57 × 76,909,652.82
  4. Step 4: Simplify right side
    138,788,281.14x = 14,730,425,939,323,820
  5. Step 5: Solve for x
    x = 14,730,425,939,323,820/138,788,281.14
  6. Step 6: Final answer
    x = 106,135,949.08

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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.