Home / 185,340,147.60-278,142,931.80-77,712,013.20

Finding the Fourth Proportional to 185,340,147.60, 278,142,931.80 and 77,712,013.20

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Solution

The fourth proportional to 185,340,147.60, 278,142,931.80 and 77,712,013.20 is: 116,623,664.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,340,147.60 : 278,142,931.80 = 77,712,013.20 : x
  2. Step 2: Convert to fraction form
    185,340,147.60/278,142,931.80 = 77,712,013.20/x
  3. Step 3: Cross multiply
    185,340,147.60x = 278,142,931.80 × 77,712,013.20
  4. Step 4: Simplify right side
    185,340,147.60x = 21,615,047,187,528,300
  5. Step 5: Solve for x
    x = 21,615,047,187,528,300/185,340,147.60
  6. Step 6: Final answer
    x = 116,623,664.48

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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.