Home / 421,666,024.32-581,895,057.60-242,984,265.48

Finding the Fourth Proportional to 421,666,024.32, 581,895,057.60 and 242,984,265.48

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Solution

The fourth proportional to 421,666,024.32, 581,895,057.60 and 242,984,265.48 is: 335,315,949.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,666,024.32 : 581,895,057.60 = 242,984,265.48 : x
  2. Step 2: Convert to fraction form
    421,666,024.32/581,895,057.60 = 242,984,265.48/x
  3. Step 3: Cross multiply
    421,666,024.32x = 581,895,057.60 × 242,984,265.48
  4. Step 4: Simplify right side
    421,666,024.32x = 141,391,343,157,378,288
  5. Step 5: Solve for x
    x = 141,391,343,157,378,288/421,666,024.32
  6. Step 6: Final answer
    x = 335,315,949.12

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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.