Home / 99,219,909.40-148,829,864.10-71,868,412.60

Finding the Fourth Proportional to 99,219,909.40, 148,829,864.10 and 71,868,412.60

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Solution

The fourth proportional to 99,219,909.40, 148,829,864.10 and 71,868,412.60 is: 107,802,618.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,219,909.40 : 148,829,864.10 = 71,868,412.60 : x
  2. Step 2: Convert to fraction form
    99,219,909.40/148,829,864.10 = 71,868,412.60/x
  3. Step 3: Cross multiply
    99,219,909.40x = 148,829,864.10 × 71,868,412.60
  4. Step 4: Simplify right side
    99,219,909.40x = 10,696,166,080,340,726
  5. Step 5: Solve for x
    x = 10,696,166,080,340,726/99,219,909.40
  6. Step 6: Final answer
    x = 107,802,618.90

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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.