Home / 123,651,007.90-185,476,511.85-42,880,140.70

Finding the Fourth Proportional to 123,651,007.90, 185,476,511.85 and 42,880,140.70

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Solution

The fourth proportional to 123,651,007.90, 185,476,511.85 and 42,880,140.70 is: 64,320,211.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,651,007.90 : 185,476,511.85 = 42,880,140.70 : x
  2. Step 2: Convert to fraction form
    123,651,007.90/185,476,511.85 = 42,880,140.70/x
  3. Step 3: Cross multiply
    123,651,007.90x = 185,476,511.85 × 42,880,140.70
  4. Step 4: Simplify right side
    123,651,007.90x = 7,953,258,924,673,218
  5. Step 5: Solve for x
    x = 7,953,258,924,673,218/123,651,007.90
  6. Step 6: Final answer
    x = 64,320,211.05

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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.