Home / 105,192,401.40-157,788,602.10-28,515,306.60

Finding the Fourth Proportional to 105,192,401.40, 157,788,602.10 and 28,515,306.60

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Solution

The fourth proportional to 105,192,401.40, 157,788,602.10 and 28,515,306.60 is: 42,772,959.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,192,401.40 : 157,788,602.10 = 28,515,306.60 : x
  2. Step 2: Convert to fraction form
    105,192,401.40/157,788,602.10 = 28,515,306.60/x
  3. Step 3: Cross multiply
    105,192,401.40x = 157,788,602.10 × 28,515,306.60
  4. Step 4: Simplify right side
    105,192,401.40x = 4,499,390,366,866,904
  5. Step 5: Solve for x
    x = 4,499,390,366,866,904/105,192,401.40
  6. Step 6: Final answer
    x = 42,772,959.90

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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.