Home / 7,172,409.84-9,897,929.20-4,074,938.52

Finding the Fourth Proportional to 7,172,409.84, 9,897,929.20 and 4,074,938.52

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Solution

The fourth proportional to 7,172,409.84, 9,897,929.20 and 4,074,938.52 is: 5,623,417.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,172,409.84 : 9,897,929.20 = 4,074,938.52 : x
  2. Step 2: Convert to fraction form
    7,172,409.84/9,897,929.20 = 4,074,938.52/x
  3. Step 3: Cross multiply
    7,172,409.84x = 9,897,929.20 × 4,074,938.52
  4. Step 4: Simplify right side
    7,172,409.84x = 40,333,452,965,312.78
  5. Step 5: Solve for x
    x = 40,333,452,965,312.78/7,172,409.84
  6. Step 6: Final answer
    x = 5,623,417.21

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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.