Home / 392,207,261.40-587,249,208.90-307,272,605.40

Finding the Fourth Proportional to 392,207,261.40, 587,249,208.90 and 307,272,605.40

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Solution

The fourth proportional to 392,207,261.40, 587,249,208.90 and 307,272,605.40 is: 460,077,138.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,207,261.40 : 587,249,208.90 = 307,272,605.40 : x
  2. Step 2: Convert to fraction form
    392,207,261.40/587,249,208.90 = 307,272,605.40/x
  3. Step 3: Cross multiply
    392,207,261.40x = 587,249,208.90 × 307,272,605.40
  4. Step 4: Simplify right side
    392,207,261.40x = 180,445,594,437,791,840
  5. Step 5: Solve for x
    x = 180,445,594,437,791,840/392,207,261.40
  6. Step 6: Final answer
    x = 460,077,138.28

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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.