Home / 99,853,311.10-149,779,966.65-81,713,458.30

Finding the Fourth Proportional to 99,853,311.10, 149,779,966.65 and 81,713,458.30

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Solution

The fourth proportional to 99,853,311.10, 149,779,966.65 and 81,713,458.30 is: 122,570,187.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,853,311.10 : 149,779,966.65 = 81,713,458.30 : x
  2. Step 2: Convert to fraction form
    99,853,311.10/149,779,966.65 = 81,713,458.30/x
  3. Step 3: Cross multiply
    99,853,311.10x = 149,779,966.65 × 81,713,458.30
  4. Step 4: Simplify right side
    99,853,311.10x = 12,239,039,059,030,166
  5. Step 5: Solve for x
    x = 12,239,039,059,030,166/99,853,311.10
  6. Step 6: Final answer
    x = 122,570,187.45

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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.