Home / 142,128,001.60-213,129,794.40-65,425,537.60

Finding the Fourth Proportional to 142,128,001.60, 213,129,794.40 and 65,425,537.60

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Solution

The fourth proportional to 142,128,001.60, 213,129,794.40 and 65,425,537.60 is: 98,109,670.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,128,001.60 : 213,129,794.40 = 65,425,537.60 : x
  2. Step 2: Convert to fraction form
    142,128,001.60/213,129,794.40 = 65,425,537.60/x
  3. Step 3: Cross multiply
    142,128,001.60x = 213,129,794.40 × 65,425,537.60
  4. Step 4: Simplify right side
    142,128,001.60x = 13,944,131,377,197,470
  5. Step 5: Solve for x
    x = 13,944,131,377,197,470/142,128,001.60
  6. Step 6: Final answer
    x = 98,109,670.30

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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.