Home / 75,712,934.60-113,420,102.70-45,330,547.40

Finding the Fourth Proportional to 75,712,934.60, 113,420,102.70 and 45,330,547.40

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Solution

The fourth proportional to 75,712,934.60, 113,420,102.70 and 45,330,547.40 is: 67,906,433.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,712,934.60 : 113,420,102.70 = 45,330,547.40 : x
  2. Step 2: Convert to fraction form
    75,712,934.60/113,420,102.70 = 45,330,547.40/x
  3. Step 3: Cross multiply
    75,712,934.60x = 113,420,102.70 × 45,330,547.40
  4. Step 4: Simplify right side
    75,712,934.60x = 5,141,395,341,555,218
  5. Step 5: Solve for x
    x = 5,141,395,341,555,218/75,712,934.60
  6. Step 6: Final answer
    x = 67,906,433.28

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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.