Home / 139,824,140.40-209,736,210.60-88,931,775.60

Finding the Fourth Proportional to 139,824,140.40, 209,736,210.60 and 88,931,775.60

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Solution

The fourth proportional to 139,824,140.40, 209,736,210.60 and 88,931,775.60 is: 133,397,663.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,824,140.40 : 209,736,210.60 = 88,931,775.60 : x
  2. Step 2: Convert to fraction form
    139,824,140.40/209,736,210.60 = 88,931,775.60/x
  3. Step 3: Cross multiply
    139,824,140.40x = 209,736,210.60 × 88,931,775.60
  4. Step 4: Simplify right side
    139,824,140.40x = 18,652,213,616,273,540
  5. Step 5: Solve for x
    x = 18,652,213,616,273,540/139,824,140.40
  6. Step 6: Final answer
    x = 133,397,663.40

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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.