Home / 77,704,420.81-107,229,289.56-42,896,363.84

Finding the Fourth Proportional to 77,704,420.81, 107,229,289.56 and 42,896,363.84

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Solution

The fourth proportional to 77,704,420.81, 107,229,289.56 and 42,896,363.84 is: 59,195,430.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,704,420.81 : 107,229,289.56 = 42,896,363.84 : x
  2. Step 2: Convert to fraction form
    77,704,420.81/107,229,289.56 = 42,896,363.84/x
  3. Step 3: Cross multiply
    77,704,420.81x = 107,229,289.56 × 42,896,363.84
  4. Step 4: Simplify right side
    77,704,420.81x = 4,599,746,619,270,474
  5. Step 5: Solve for x
    x = 4,599,746,619,270,474/77,704,420.81
  6. Step 6: Final answer
    x = 59,195,430.22

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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.