Home / 129,830,731.58-179,168,612.92-71,092,460.54

Finding the Fourth Proportional to 129,830,731.58, 179,168,612.92 and 71,092,460.54

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Solution

The fourth proportional to 129,830,731.58, 179,168,612.92 and 71,092,460.54 is: 98,108,802.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,830,731.58 : 179,168,612.92 = 71,092,460.54 : x
  2. Step 2: Convert to fraction form
    129,830,731.58/179,168,612.92 = 71,092,460.54/x
  3. Step 3: Cross multiply
    129,830,731.58x = 179,168,612.92 × 71,092,460.54
  4. Step 4: Simplify right side
    129,830,731.58x = 12,737,537,544,021,634
  5. Step 5: Solve for x
    x = 12,737,537,544,021,634/129,830,731.58
  6. Step 6: Final answer
    x = 98,108,802.05

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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.