Home / 121,311,143.40-181,966,715.10-53,286,695.40

Finding the Fourth Proportional to 121,311,143.40, 181,966,715.10 and 53,286,695.40

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Solution

The fourth proportional to 121,311,143.40, 181,966,715.10 and 53,286,695.40 is: 79,930,043.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,311,143.40 : 181,966,715.10 = 53,286,695.40 : x
  2. Step 2: Convert to fraction form
    121,311,143.40/181,966,715.10 = 53,286,695.40/x
  3. Step 3: Cross multiply
    121,311,143.40x = 181,966,715.10 × 53,286,695.40
  4. Step 4: Simplify right side
    121,311,143.40x = 9,696,404,920,472,280
  5. Step 5: Solve for x
    x = 9,696,404,920,472,280/121,311,143.40
  6. Step 6: Final answer
    x = 79,930,043.10

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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.