Home / 99,678,923.40-149,357,421.90-56,419,480.20

Finding the Fourth Proportional to 99,678,923.40, 149,357,421.90 and 56,419,480.20

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Solution

The fourth proportional to 99,678,923.40, 149,357,421.90 and 56,419,480.20 is: 84,538,113.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,678,923.40 : 149,357,421.90 = 56,419,480.20 : x
  2. Step 2: Convert to fraction form
    99,678,923.40/149,357,421.90 = 56,419,480.20/x
  3. Step 3: Cross multiply
    99,678,923.40x = 149,357,421.90 × 56,419,480.20
  4. Step 4: Simplify right side
    99,678,923.40x = 8,426,668,107,610,097
  5. Step 5: Solve for x
    x = 8,426,668,107,610,097/99,678,923.40
  6. Step 6: Final answer
    x = 84,538,113.18

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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.