Home / 687,492,462.11-948,762,514.19-386,130,881.16

Finding the Fourth Proportional to 687,492,462.11, 948,762,514.19 and 386,130,881.16

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Solution

The fourth proportional to 687,492,462.11, 948,762,514.19 and 386,130,881.16 is: 532,873,487.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,492,462.11 : 948,762,514.19 = 386,130,881.16 : x
  2. Step 2: Convert to fraction form
    687,492,462.11/948,762,514.19 = 386,130,881.16/x
  3. Step 3: Cross multiply
    687,492,462.11x = 948,762,514.19 × 386,130,881.16
  4. Step 4: Simplify right side
    687,492,462.11x = 366,346,505,616,727,040
  5. Step 5: Solve for x
    x = 366,346,505,616,727,040/687,492,462.11
  6. Step 6: Final answer
    x = 532,873,487.07

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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.