Home / 279,565,541.85-385,801,613.04-154,114,981.80

Finding the Fourth Proportional to 279,565,541.85, 385,801,613.04 and 154,114,981.80

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Solution

The fourth proportional to 279,565,541.85, 385,801,613.04 and 154,114,981.80 is: 212,679,317.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,565,541.85 : 385,801,613.04 = 154,114,981.80 : x
  2. Step 2: Convert to fraction form
    279,565,541.85/385,801,613.04 = 154,114,981.80/x
  3. Step 3: Cross multiply
    279,565,541.85x = 385,801,613.04 × 154,114,981.80
  4. Step 4: Simplify right side
    279,565,541.85x = 59,457,808,572,070,248
  5. Step 5: Solve for x
    x = 59,457,808,572,070,248/279,565,541.85
  6. Step 6: Final answer
    x = 212,679,317.27

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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.