Home / 1,279,411,630.31-1,919,117,445.47-310,063,246.31

Finding the Fourth Proportional to 1,279,411,630.31, 1,919,117,445.47 and 310,063,246.31

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Solution

The fourth proportional to 1,279,411,630.31, 1,919,117,445.47 and 310,063,246.31 is: 465,094,869.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,411,630.31 : 1,919,117,445.47 = 310,063,246.31 : x
  2. Step 2: Convert to fraction form
    1,279,411,630.31/1,919,117,445.47 = 310,063,246.31/x
  3. Step 3: Cross multiply
    1,279,411,630.31x = 1,919,117,445.47 × 310,063,246.31
  4. Step 4: Simplify right side
    1,279,411,630.31x = 595,047,785,197,008,384
  5. Step 5: Solve for x
    x = 595,047,785,197,008,384/1,279,411,630.31
  6. Step 6: Final answer
    x = 465,094,869.47

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Double scale
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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.