Home / 517,893,831.61-714,693,774.37-279,739,014.95

Finding the Fourth Proportional to 517,893,831.61, 714,693,774.37 and 279,739,014.95

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Solution

The fourth proportional to 517,893,831.61, 714,693,774.37 and 279,739,014.95 is: 386,039,995.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,893,831.61 : 714,693,774.37 = 279,739,014.95 : x
  2. Step 2: Convert to fraction form
    517,893,831.61/714,693,774.37 = 279,739,014.95/x
  3. Step 3: Cross multiply
    517,893,831.61x = 714,693,774.37 × 279,739,014.95
  4. Step 4: Simplify right side
    517,893,831.61x = 199,927,732,433,161,344
  5. Step 5: Solve for x
    x = 199,927,732,433,161,344/517,893,831.61
  6. Step 6: Final answer
    x = 386,039,995.52

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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.