Home / 138,700,460.09-208,024,679.35-69,594,708.71

Finding the Fourth Proportional to 138,700,460.09, 208,024,679.35 and 69,594,708.71

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Solution

The fourth proportional to 138,700,460.09, 208,024,679.35 and 69,594,708.71 is: 104,379,011.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,700,460.09 : 208,024,679.35 = 69,594,708.71 : x
  2. Step 2: Convert to fraction form
    138,700,460.09/208,024,679.35 = 69,594,708.71/x
  3. Step 3: Cross multiply
    138,700,460.09x = 208,024,679.35 × 69,594,708.71
  4. Step 4: Simplify right side
    138,700,460.09x = 14,477,416,963,854,400
  5. Step 5: Solve for x
    x = 14,477,416,963,854,400/138,700,460.09
  6. Step 6: Final answer
    x = 104,379,011.82

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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.