Home / 99,567,985.10-149,340,918.45-81,585,725.90

Finding the Fourth Proportional to 99,567,985.10, 149,340,918.45 and 81,585,725.90

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Solution

The fourth proportional to 99,567,985.10, 149,340,918.45 and 81,585,725.90 is: 122,369,526.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,567,985.10 : 149,340,918.45 = 81,585,725.90 : x
  2. Step 2: Convert to fraction form
    99,567,985.10/149,340,918.45 = 81,585,725.90/x
  3. Step 3: Cross multiply
    99,567,985.10x = 149,340,918.45 × 81,585,725.90
  4. Step 4: Simplify right side
    99,567,985.10x = 12,184,087,238,315,952
  5. Step 5: Solve for x
    x = 12,184,087,238,315,952/99,567,985.10
  6. Step 6: Final answer
    x = 122,369,526.97

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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.