Home / 156,862,880.91-216,466,429.34-85,333,390.88

Finding the Fourth Proportional to 156,862,880.91, 216,466,429.34 and 85,333,390.88

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Solution

The fourth proportional to 156,862,880.91, 216,466,429.34 and 85,333,390.88 is: 117,757,715.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,862,880.91 : 216,466,429.34 = 85,333,390.88 : x
  2. Step 2: Convert to fraction form
    156,862,880.91/216,466,429.34 = 85,333,390.88/x
  3. Step 3: Cross multiply
    156,862,880.91x = 216,466,429.34 × 85,333,390.88
  4. Step 4: Simplify right side
    156,862,880.91x = 18,471,814,426,399,120
  5. Step 5: Solve for x
    x = 18,471,814,426,399,120/156,862,880.91
  6. Step 6: Final answer
    x = 117,757,715.01

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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.