Home / 890,877,090.78-1,229,438,342.88-514,526,687.10

Finding the Fourth Proportional to 890,877,090.78, 1,229,438,342.88 and 514,526,687.10

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Solution

The fourth proportional to 890,877,090.78, 1,229,438,342.88 and 514,526,687.10 is: 710,062,975.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,877,090.78 : 1,229,438,342.88 = 514,526,687.10 : x
  2. Step 2: Convert to fraction form
    890,877,090.78/1,229,438,342.88 = 514,526,687.10/x
  3. Step 3: Cross multiply
    890,877,090.78x = 1,229,438,342.88 × 514,526,687.10
  4. Step 4: Simplify right side
    890,877,090.78x = 632,578,837,555,760,384
  5. Step 5: Solve for x
    x = 632,578,837,555,760,384/890,877,090.78
  6. Step 6: Final answer
    x = 710,062,975.13

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Double scale
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1.5x scale

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.