Home / 185,340,357.60-278,143,246.80-77,712,223.20

Finding the Fourth Proportional to 185,340,357.60, 278,143,246.80 and 77,712,223.20

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Solution

The fourth proportional to 185,340,357.60, 278,143,246.80 and 77,712,223.20 is: 116,623,979.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,340,357.60 : 278,143,246.80 = 77,712,223.20 : x
  2. Step 2: Convert to fraction form
    185,340,357.60/278,143,246.80 = 77,712,223.20/x
  3. Step 3: Cross multiply
    185,340,357.60x = 278,143,246.80 × 77,712,223.20
  4. Step 4: Simplify right side
    185,340,357.60x = 21,615,130,076,894,288
  5. Step 5: Solve for x
    x = 21,615,130,076,894,288/185,340,357.60
  6. Step 6: Final answer
    x = 116,623,979.56

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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.