Home / 289,172,679.40-433,756,254.30-70,823,981.80

Finding the Fourth Proportional to 289,172,679.40, 433,756,254.30 and 70,823,981.80

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Solution

The fourth proportional to 289,172,679.40, 433,756,254.30 and 70,823,981.80 is: 106,235,295.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,172,679.40 : 433,756,254.30 = 70,823,981.80 : x
  2. Step 2: Convert to fraction form
    289,172,679.40/433,756,254.30 = 70,823,981.80/x
  3. Step 3: Cross multiply
    289,172,679.40x = 433,756,254.30 × 70,823,981.80
  4. Step 4: Simplify right side
    289,172,679.40x = 30,720,345,060,179,372
  5. Step 5: Solve for x
    x = 30,720,345,060,179,372/289,172,679.40
  6. Step 6: Final answer
    x = 106,235,295.55

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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.