Home / 99,814,612.60-149,710,859.70-81,832,353.40

Finding the Fourth Proportional to 99,814,612.60, 149,710,859.70 and 81,832,353.40

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Solution

The fourth proportional to 99,814,612.60, 149,710,859.70 and 81,832,353.40 is: 122,739,463.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,814,612.60 : 149,710,859.70 = 81,832,353.40 : x
  2. Step 2: Convert to fraction form
    99,814,612.60/149,710,859.70 = 81,832,353.40/x
  3. Step 3: Cross multiply
    99,814,612.60x = 149,710,859.70 × 81,832,353.40
  4. Step 4: Simplify right side
    99,814,612.60x = 12,251,191,978,788,218
  5. Step 5: Solve for x
    x = 12,251,191,978,788,218/99,814,612.60
  6. Step 6: Final answer
    x = 122,739,463.29

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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.