Home / 908,344,273.36-1,253,515,646.40-490,656,743.19

Finding the Fourth Proportional to 908,344,273.36, 1,253,515,646.40 and 490,656,743.19

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Solution

The fourth proportional to 908,344,273.36, 1,253,515,646.40 and 490,656,743.19 is: 677,106,602.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,344,273.36 : 1,253,515,646.40 = 490,656,743.19 : x
  2. Step 2: Convert to fraction form
    908,344,273.36/1,253,515,646.40 = 490,656,743.19/x
  3. Step 3: Cross multiply
    908,344,273.36x = 1,253,515,646.40 × 490,656,743.19
  4. Step 4: Simplify right side
    908,344,273.36x = 615,045,904,594,064,128
  5. Step 5: Solve for x
    x = 615,045,904,594,064,128/908,344,273.36
  6. Step 6: Final answer
    x = 677,106,602.23

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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.