Home / 128,159,052.56-176,860,341.72-69,421,717.04

Finding the Fourth Proportional to 128,159,052.56, 176,860,341.72 and 69,421,717.04

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Solution

The fourth proportional to 128,159,052.56, 176,860,341.72 and 69,421,717.04 is: 95,802,429.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,159,052.56 : 176,860,341.72 = 69,421,717.04 : x
  2. Step 2: Convert to fraction form
    128,159,052.56/176,860,341.72 = 69,421,717.04/x
  3. Step 3: Cross multiply
    128,159,052.56x = 176,860,341.72 × 69,421,717.04
  4. Step 4: Simplify right side
    128,159,052.56x = 12,277,948,598,483,548
  5. Step 5: Solve for x
    x = 12,277,948,598,483,548/128,159,052.56
  6. Step 6: Final answer
    x = 95,802,429.51

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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.