Home / 40,428,401.80-60,642,602.70-18,905,041.30

Finding the Fourth Proportional to 40,428,401.80, 60,642,602.70 and 18,905,041.30

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Solution

The fourth proportional to 40,428,401.80, 60,642,602.70 and 18,905,041.30 is: 28,357,561.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,428,401.80 : 60,642,602.70 = 18,905,041.30 : x
  2. Step 2: Convert to fraction form
    40,428,401.80/60,642,602.70 = 18,905,041.30/x
  3. Step 3: Cross multiply
    40,428,401.80x = 60,642,602.70 × 18,905,041.30
  4. Step 4: Simplify right side
    40,428,401.80x = 1,146,450,908,582,991.50
  5. Step 5: Solve for x
    x = 1,146,450,908,582,991.50/40,428,401.80
  6. Step 6: Final answer
    x = 28,357,561.95

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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.