Home / 850,146,997.71-1,173,155,420.75-468,656,724.45

Finding the Fourth Proportional to 850,146,997.71, 1,173,155,420.75 and 468,656,724.45

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Solution

The fourth proportional to 850,146,997.71, 1,173,155,420.75 and 468,656,724.45 is: 646,720,129.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,146,997.71 : 1,173,155,420.75 = 468,656,724.45 : x
  2. Step 2: Convert to fraction form
    850,146,997.71/1,173,155,420.75 = 468,656,724.45/x
  3. Step 3: Cross multiply
    850,146,997.71x = 1,173,155,420.75 × 468,656,724.45
  4. Step 4: Simplify right side
    850,146,997.71x = 549,807,176,757,113,216
  5. Step 5: Solve for x
    x = 549,807,176,757,113,216/850,146,997.71
  6. Step 6: Final answer
    x = 646,720,129.86

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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.