Home / 420,668,316,612.49-580,807,246,881.10-266,480,823,784.72

Finding the Fourth Proportional to 420,668,316,612.49, 580,807,246,881.10 and 266,480,823,784.72

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Solution

The fourth proportional to 420,668,316,612.49, 580,807,246,881.10 and 266,480,823,784.72 is: 367,924,056,785.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,668,316,612.49 : 580,807,246,881.10 = 266,480,823,784.72 : x
  2. Step 2: Convert to fraction form
    420,668,316,612.49/580,807,246,881.10 = 266,480,823,784.72/x
  3. Step 3: Cross multiply
    420,668,316,612.49x = 580,807,246,881.10 × 266,480,823,784.72
  4. Step 4: Simplify right side
    420,668,316,612.49x = 154,773,993,609,010,773,753,856
  5. Step 5: Solve for x
    x = 154,773,993,609,010,773,753,856/420,668,316,612.49
  6. Step 6: Final answer
    x = 367,924,056,785.06

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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.