Home / 289,172,824.40-433,756,471.80-70,824,126.80

Finding the Fourth Proportional to 289,172,824.40, 433,756,471.80 and 70,824,126.80

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Solution

The fourth proportional to 289,172,824.40, 433,756,471.80 and 70,824,126.80 is: 106,235,513.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,172,824.40 : 433,756,471.80 = 70,824,126.80 : x
  2. Step 2: Convert to fraction form
    289,172,824.40/433,756,471.80 = 70,824,126.80/x
  3. Step 3: Cross multiply
    289,172,824.40x = 433,756,471.80 × 70,824,126.80
  4. Step 4: Simplify right side
    289,172,824.40x = 30,720,423,359,083,824
  5. Step 5: Solve for x
    x = 30,720,423,359,083,824/289,172,824.40
  6. Step 6: Final answer
    x = 106,235,513.05

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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.