Home / 79,488,015.20-119,232,022.80-43,113,831.20

Finding the Fourth Proportional to 79,488,015.20, 119,232,022.80 and 43,113,831.20

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Solution

The fourth proportional to 79,488,015.20, 119,232,022.80 and 43,113,831.20 is: 64,670,746.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,488,015.20 : 119,232,022.80 = 43,113,831.20 : x
  2. Step 2: Convert to fraction form
    79,488,015.20/119,232,022.80 = 43,113,831.20/x
  3. Step 3: Cross multiply
    79,488,015.20x = 119,232,022.80 × 43,113,831.20
  4. Step 4: Simplify right side
    79,488,015.20x = 5,140,549,304,633,752
  5. Step 5: Solve for x
    x = 5,140,549,304,633,752/79,488,015.20
  6. Step 6: Final answer
    x = 64,670,746.80

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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.