Home / 155,851,722.41-215,060,726.75-105,513,538.63

Finding the Fourth Proportional to 155,851,722.41, 215,060,726.75 and 105,513,538.63

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Solution

The fourth proportional to 155,851,722.41, 215,060,726.75 and 105,513,538.63 is: 145,598,764.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,851,722.41 : 215,060,726.75 = 105,513,538.63 : x
  2. Step 2: Convert to fraction form
    155,851,722.41/215,060,726.75 = 105,513,538.63/x
  3. Step 3: Cross multiply
    155,851,722.41x = 215,060,726.75 × 105,513,538.63
  4. Step 4: Simplify right side
    155,851,722.41x = 22,691,818,299,664,080
  5. Step 5: Solve for x
    x = 22,691,818,299,664,080/155,851,722.41
  6. Step 6: Final answer
    x = 145,598,764.96

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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.