Home / 372,359,306.46-513,855,818.52-215,817,215.06

Finding the Fourth Proportional to 372,359,306.46, 513,855,818.52 and 215,817,215.06

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Solution

The fourth proportional to 372,359,306.46, 513,855,818.52 and 215,817,215.06 is: 297,827,742.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,359,306.46 : 513,855,818.52 = 215,817,215.06 : x
  2. Step 2: Convert to fraction form
    372,359,306.46/513,855,818.52 = 215,817,215.06/x
  3. Step 3: Cross multiply
    372,359,306.46x = 513,855,818.52 × 215,817,215.06
  4. Step 4: Simplify right side
    372,359,306.46x = 110,898,931,695,363,168
  5. Step 5: Solve for x
    x = 110,898,931,695,363,168/372,359,306.46
  6. Step 6: Final answer
    x = 297,827,742.64

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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.