Home / 130,403,771.28-179,961,518.92-71,668,518.32

Finding the Fourth Proportional to 130,403,771.28, 179,961,518.92 and 71,668,518.32

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Solution

The fourth proportional to 130,403,771.28, 179,961,518.92 and 71,668,518.32 is: 98,904,926.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,403,771.28 : 179,961,518.92 = 71,668,518.32 : x
  2. Step 2: Convert to fraction form
    130,403,771.28/179,961,518.92 = 71,668,518.32/x
  3. Step 3: Cross multiply
    130,403,771.28x = 179,961,518.92 × 71,668,518.32
  4. Step 4: Simplify right side
    130,403,771.28x = 12,897,575,415,613,044
  5. Step 5: Solve for x
    x = 12,897,575,415,613,044/130,403,771.28
  6. Step 6: Final answer
    x = 98,904,926.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.