Home / 77,851,278.30-116,776,917.45-45,486,521.40

Finding the Fourth Proportional to 77,851,278.30, 116,776,917.45 and 45,486,521.40

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Solution

The fourth proportional to 77,851,278.30, 116,776,917.45 and 45,486,521.40 is: 68,229,782.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,851,278.30 : 116,776,917.45 = 45,486,521.40 : x
  2. Step 2: Convert to fraction form
    77,851,278.30/116,776,917.45 = 45,486,521.40/x
  3. Step 3: Cross multiply
    77,851,278.30x = 116,776,917.45 × 45,486,521.40
  4. Step 4: Simplify right side
    77,851,278.30x = 5,311,775,754,615,458
  5. Step 5: Solve for x
    x = 5,311,775,754,615,458/77,851,278.30
  6. Step 6: Final answer
    x = 68,229,782.10

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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.