Home / 93,118,445.64-128,458,951.38-72,349,760.52

Finding the Fourth Proportional to 93,118,445.64, 128,458,951.38 and 72,349,760.52

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Solution

The fourth proportional to 93,118,445.64, 128,458,951.38 and 72,349,760.52 is: 99,808,091.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,118,445.64 : 128,458,951.38 = 72,349,760.52 : x
  2. Step 2: Convert to fraction form
    93,118,445.64/128,458,951.38 = 72,349,760.52/x
  3. Step 3: Cross multiply
    93,118,445.64x = 128,458,951.38 × 72,349,760.52
  4. Step 4: Simplify right side
    93,118,445.64x = 9,293,974,368,993,322
  5. Step 5: Solve for x
    x = 9,293,974,368,993,322/93,118,445.64
  6. Step 6: Final answer
    x = 99,808,091.78

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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.