Home / 83,990,539.20-125,985,808.80-69,641,632.20

Finding the Fourth Proportional to 83,990,539.20, 125,985,808.80 and 69,641,632.20

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Solution

The fourth proportional to 83,990,539.20, 125,985,808.80 and 69,641,632.20 is: 104,462,448.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,990,539.20 : 125,985,808.80 = 69,641,632.20 : x
  2. Step 2: Convert to fraction form
    83,990,539.20/125,985,808.80 = 69,641,632.20/x
  3. Step 3: Cross multiply
    83,990,539.20x = 125,985,808.80 × 69,641,632.20
  4. Step 4: Simplify right side
    83,990,539.20x = 8,773,857,358,869,124
  5. Step 5: Solve for x
    x = 8,773,857,358,869,124/83,990,539.20
  6. Step 6: Final answer
    x = 104,462,448.30

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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.