Home / 30,578,712-42,198,076.76-16,639,591.74

Finding the Fourth Proportional to 30,578,712, 42,198,076.76 and 16,639,591.74

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Solution

The fourth proportional to 30,578,712, 42,198,076.76 and 16,639,591.74 is: 22,962,339.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,578,712 : 42,198,076.76 = 16,639,591.74 : x
  2. Step 2: Convert to fraction form
    30,578,712/42,198,076.76 = 16,639,591.74/x
  3. Step 3: Cross multiply
    30,578,712x = 42,198,076.76 × 16,639,591.74
  4. Step 4: Simplify right side
    30,578,712x = 702,158,769,499,581.88
  5. Step 5: Solve for x
    x = 702,158,769,499,581.88/30,578,712
  6. Step 6: Final answer
    x = 22,962,339.60

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1.5x scale

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.