Home / 243,373,886.79-365,425,531.11-210,685,282.88

Finding the Fourth Proportional to 243,373,886.79, 365,425,531.11 and 210,685,282.88

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Solution

The fourth proportional to 243,373,886.79, 365,425,531.11 and 210,685,282.88 is: 316,343,640.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,373,886.79 : 365,425,531.11 = 210,685,282.88 : x
  2. Step 2: Convert to fraction form
    243,373,886.79/365,425,531.11 = 210,685,282.88/x
  3. Step 3: Cross multiply
    243,373,886.79x = 365,425,531.11 × 210,685,282.88
  4. Step 4: Simplify right side
    243,373,886.79x = 76,989,781,391,657,472
  5. Step 5: Solve for x
    x = 76,989,781,391,657,472/243,373,886.79
  6. Step 6: Final answer
    x = 316,343,640.68

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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.