Home / 524,931,901.20-787,397,851.80-218,821,885.20

Finding the Fourth Proportional to 524,931,901.20, 787,397,851.80 and 218,821,885.20

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Solution

The fourth proportional to 524,931,901.20, 787,397,851.80 and 218,821,885.20 is: 328,232,827.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,931,901.20 : 787,397,851.80 = 218,821,885.20 : x
  2. Step 2: Convert to fraction form
    524,931,901.20/787,397,851.80 = 218,821,885.20/x
  3. Step 3: Cross multiply
    524,931,901.20x = 787,397,851.80 × 218,821,885.20
  4. Step 4: Simplify right side
    524,931,901.20x = 172,299,882,333,306,208
  5. Step 5: Solve for x
    x = 172,299,882,333,306,208/524,931,901.20
  6. Step 6: Final answer
    x = 328,232,827.80

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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.