Home / 89,677,831.20-134,516,746.80-67,995,038.40

Finding the Fourth Proportional to 89,677,831.20, 134,516,746.80 and 67,995,038.40

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Solution

The fourth proportional to 89,677,831.20, 134,516,746.80 and 67,995,038.40 is: 101,992,557.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,677,831.20 : 134,516,746.80 = 67,995,038.40 : x
  2. Step 2: Convert to fraction form
    89,677,831.20/134,516,746.80 = 67,995,038.40/x
  3. Step 3: Cross multiply
    89,677,831.20x = 134,516,746.80 × 67,995,038.40
  4. Step 4: Simplify right side
    89,677,831.20x = 9,146,471,364,109,078
  5. Step 5: Solve for x
    x = 9,146,471,364,109,078/89,677,831.20
  6. Step 6: Final answer
    x = 101,992,557.60

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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.