Home / 83,178,681.40-124,776,359.70-28,584,076.60

Finding the Fourth Proportional to 83,178,681.40, 124,776,359.70 and 28,584,076.60

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Solution

The fourth proportional to 83,178,681.40, 124,776,359.70 and 28,584,076.60 is: 42,878,980.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,178,681.40 : 124,776,359.70 = 28,584,076.60 : x
  2. Step 2: Convert to fraction form
    83,178,681.40/124,776,359.70 = 28,584,076.60/x
  3. Step 3: Cross multiply
    83,178,681.40x = 124,776,359.70 × 28,584,076.60
  4. Step 4: Simplify right side
    83,178,681.40x = 3,566,617,023,533,953.50
  5. Step 5: Solve for x
    x = 3,566,617,023,533,953.50/83,178,681.40
  6. Step 6: Final answer
    x = 42,878,980.09

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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.