Home / 138,700,459.76-208,024,678.87-69,594,708.39

Finding the Fourth Proportional to 138,700,459.76, 208,024,678.87 and 69,594,708.39

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Solution

The fourth proportional to 138,700,459.76, 208,024,678.87 and 69,594,708.39 is: 104,379,011.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,700,459.76 : 208,024,678.87 = 69,594,708.39 : x
  2. Step 2: Convert to fraction form
    138,700,459.76/208,024,678.87 = 69,594,708.39/x
  3. Step 3: Cross multiply
    138,700,459.76x = 208,024,678.87 × 69,594,708.39
  4. Step 4: Simplify right side
    138,700,459.76x = 14,477,416,863,707,058
  5. Step 5: Solve for x
    x = 14,477,416,863,707,058/138,700,459.76
  6. Step 6: Final answer
    x = 104,379,011.35

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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.