Home / 233,113,612.32-321,688,335.60-128,689,436.16

Finding the Fourth Proportional to 233,113,612.32, 321,688,335.60 and 128,689,436.16

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Solution

The fourth proportional to 233,113,612.32, 321,688,335.60 and 128,689,436.16 is: 177,586,757.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    233,113,612.32 : 321,688,335.60 = 128,689,436.16 : x
  2. Step 2: Convert to fraction form
    233,113,612.32/321,688,335.60 = 128,689,436.16/x
  3. Step 3: Cross multiply
    233,113,612.32x = 321,688,335.60 × 128,689,436.16
  4. Step 4: Simplify right side
    233,113,612.32x = 41,397,890,527,612,856
  5. Step 5: Solve for x
    x = 41,397,890,527,612,856/233,113,612.32
  6. Step 6: Final answer
    x = 177,586,757.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.