Home / 138,772,390.96-191,506,124.60-76,038,520.11

Finding the Fourth Proportional to 138,772,390.96, 191,506,124.60 and 76,038,520.11

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Solution

The fourth proportional to 138,772,390.96, 191,506,124.60 and 76,038,520.11 is: 104,933,281.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,772,390.96 : 191,506,124.60 = 76,038,520.11 : x
  2. Step 2: Convert to fraction form
    138,772,390.96/191,506,124.60 = 76,038,520.11/x
  3. Step 3: Cross multiply
    138,772,390.96x = 191,506,124.60 × 76,038,520.11
  4. Step 4: Simplify right side
    138,772,390.96x = 14,561,842,306,585,266
  5. Step 5: Solve for x
    x = 14,561,842,306,585,266/138,772,390.96
  6. Step 6: Final answer
    x = 104,933,281.08

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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.