Home / 252,075,320.64-378,113,071.68-79,569,581.76

Finding the Fourth Proportional to 252,075,320.64, 378,113,071.68 and 79,569,581.76

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Solution

The fourth proportional to 252,075,320.64, 378,113,071.68 and 79,569,581.76 is: 119,354,401.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,075,320.64 : 378,113,071.68 = 79,569,581.76 : x
  2. Step 2: Convert to fraction form
    252,075,320.64/378,113,071.68 = 79,569,581.76/x
  3. Step 3: Cross multiply
    252,075,320.64x = 378,113,071.68 × 79,569,581.76
  4. Step 4: Simplify right side
    252,075,320.64x = 30,086,298,971,566,504
  5. Step 5: Solve for x
    x = 30,086,298,971,566,504/252,075,320.64
  6. Step 6: Final answer
    x = 119,354,401.28

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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.