Home / 808,514,658.60-1,212,771,987.90-747,292,655.40

Finding the Fourth Proportional to 808,514,658.60, 1,212,771,987.90 and 747,292,655.40

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Solution

The fourth proportional to 808,514,658.60, 1,212,771,987.90 and 747,292,655.40 is: 1,120,938,983.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,514,658.60 : 1,212,771,987.90 = 747,292,655.40 : x
  2. Step 2: Convert to fraction form
    808,514,658.60/1,212,771,987.90 = 747,292,655.40/x
  3. Step 3: Cross multiply
    808,514,658.60x = 1,212,771,987.90 × 747,292,655.40
  4. Step 4: Simplify right side
    808,514,658.60x = 906,295,599,232,527,744
  5. Step 5: Solve for x
    x = 906,295,599,232,527,744/808,514,658.60
  6. Step 6: Final answer
    x = 1,120,938,983.10

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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.