Home / 99,712,898.40-149,581,011.60-31,562,479.20

Finding the Fourth Proportional to 99,712,898.40, 149,581,011.60 and 31,562,479.20

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Solution

The fourth proportional to 99,712,898.40, 149,581,011.60 and 31,562,479.20 is: 47,347,410.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,712,898.40 : 149,581,011.60 = 31,562,479.20 : x
  2. Step 2: Convert to fraction form
    99,712,898.40/149,581,011.60 = 31,562,479.20/x
  3. Step 3: Cross multiply
    99,712,898.40x = 149,581,011.60 × 31,562,479.20
  4. Step 4: Simplify right side
    99,712,898.40x = 4,721,147,567,339,958
  5. Step 5: Solve for x
    x = 4,721,147,567,339,958/99,712,898.40
  6. Step 6: Final answer
    x = 47,347,410.85

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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.