Home / 631,155,219.40-946,732,829.10-413,476,985.80

Finding the Fourth Proportional to 631,155,219.40, 946,732,829.10 and 413,476,985.80

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Solution

The fourth proportional to 631,155,219.40, 946,732,829.10 and 413,476,985.80 is: 620,215,478.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,155,219.40 : 946,732,829.10 = 413,476,985.80 : x
  2. Step 2: Convert to fraction form
    631,155,219.40/946,732,829.10 = 413,476,985.80/x
  3. Step 3: Cross multiply
    631,155,219.40x = 946,732,829.10 × 413,476,985.80
  4. Step 4: Simplify right side
    631,155,219.40x = 391,452,236,534,174,528
  5. Step 5: Solve for x
    x = 391,452,236,534,174,528/631,155,219.40
  6. Step 6: Final answer
    x = 620,215,478.70

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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.