Home / 89,384,947.20-134,077,420.80-79,748,150.40

Finding the Fourth Proportional to 89,384,947.20, 134,077,420.80 and 79,748,150.40

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Solution

The fourth proportional to 89,384,947.20, 134,077,420.80 and 79,748,150.40 is: 119,622,225.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,384,947.20 : 134,077,420.80 = 79,748,150.40 : x
  2. Step 2: Convert to fraction form
    89,384,947.20/134,077,420.80 = 79,748,150.40/x
  3. Step 3: Cross multiply
    89,384,947.20x = 134,077,420.80 × 79,748,150.40
  4. Step 4: Simplify right side
    89,384,947.20x = 10,692,426,319,202,488
  5. Step 5: Solve for x
    x = 10,692,426,319,202,488/89,384,947.20
  6. Step 6: Final answer
    x = 119,622,225.60

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1.5x scale

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.