Home / 424,974,829.80-637,462,244.70-388,695,124.20

Finding the Fourth Proportional to 424,974,829.80, 637,462,244.70 and 388,695,124.20

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Solution

The fourth proportional to 424,974,829.80, 637,462,244.70 and 388,695,124.20 is: 583,042,686.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,974,829.80 : 637,462,244.70 = 388,695,124.20 : x
  2. Step 2: Convert to fraction form
    424,974,829.80/637,462,244.70 = 388,695,124.20/x
  3. Step 3: Cross multiply
    424,974,829.80x = 637,462,244.70 × 388,695,124.20
  4. Step 4: Simplify right side
    424,974,829.80x = 247,778,466,376,477,312
  5. Step 5: Solve for x
    x = 247,778,466,376,477,312/424,974,829.80
  6. Step 6: Final answer
    x = 583,042,686.30

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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.