Home / 292,038,612.40-438,029,449.80-76,627,860.40

Finding the Fourth Proportional to 292,038,612.40, 438,029,449.80 and 76,627,860.40

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Solution

The fourth proportional to 292,038,612.40, 438,029,449.80 and 76,627,860.40 is: 114,934,320.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,038,612.40 : 438,029,449.80 = 76,627,860.40 : x
  2. Step 2: Convert to fraction form
    292,038,612.40/438,029,449.80 = 76,627,860.40/x
  3. Step 3: Cross multiply
    292,038,612.40x = 438,029,449.80 × 76,627,860.40
  4. Step 4: Simplify right side
    292,038,612.40x = 33,565,259,530,363,212
  5. Step 5: Solve for x
    x = 33,565,259,530,363,212/292,038,612.40
  6. Step 6: Final answer
    x = 114,934,320.69

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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.