Home / 776,669,089.02-1,071,803,301.85-419,436,831.29

Finding the Fourth Proportional to 776,669,089.02, 1,071,803,301.85 and 419,436,831.29

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Solution

The fourth proportional to 776,669,089.02, 1,071,803,301.85 and 419,436,831.29 is: 578,822,805.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,669,089.02 : 1,071,803,301.85 = 419,436,831.29 : x
  2. Step 2: Convert to fraction form
    776,669,089.02/1,071,803,301.85 = 419,436,831.29/x
  3. Step 3: Cross multiply
    776,669,089.02x = 1,071,803,301.85 × 419,436,831.29
  4. Step 4: Simplify right side
    776,669,089.02x = 449,553,780,689,309,696
  5. Step 5: Solve for x
    x = 449,553,780,689,309,696/776,669,089.02
  6. Step 6: Final answer
    x = 578,822,805.04

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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.