Home / 642,079,803.74-886,074,664.12-348,724,371.74

Finding the Fourth Proportional to 642,079,803.74, 886,074,664.12 and 348,724,371.74

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Solution

The fourth proportional to 642,079,803.74, 886,074,664.12 and 348,724,371.74 is: 481,242,096.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,079,803.74 : 886,074,664.12 = 348,724,371.74 : x
  2. Step 2: Convert to fraction form
    642,079,803.74/886,074,664.12 = 348,724,371.74/x
  3. Step 3: Cross multiply
    642,079,803.74x = 886,074,664.12 × 348,724,371.74
  4. Step 4: Simplify right side
    642,079,803.74x = 308,995,830,554,676,352
  5. Step 5: Solve for x
    x = 308,995,830,554,676,352/642,079,803.74
  6. Step 6: Final answer
    x = 481,242,096.01

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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.