Home / 151,466,612.47-209,014,916.95-87,882,025.84

Finding the Fourth Proportional to 151,466,612.47, 209,014,916.95 and 87,882,025.84

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Solution

The fourth proportional to 151,466,612.47, 209,014,916.95 and 87,882,025.84 is: 121,271,969.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,466,612.47 : 209,014,916.95 = 87,882,025.84 : x
  2. Step 2: Convert to fraction form
    151,466,612.47/209,014,916.95 = 87,882,025.84/x
  3. Step 3: Cross multiply
    151,466,612.47x = 209,014,916.95 × 87,882,025.84
  4. Step 4: Simplify right side
    151,466,612.47x = 18,368,654,332,345,352
  5. Step 5: Solve for x
    x = 18,368,654,332,345,352/151,466,612.47
  6. Step 6: Final answer
    x = 121,271,969.00

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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.