Home / 40,426,821.60-60,642,856.80-21,294,945.60

Finding the Fourth Proportional to 40,426,821.60, 60,642,856.80 and 21,294,945.60

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Solution

The fourth proportional to 40,426,821.60, 60,642,856.80 and 21,294,945.60 is: 31,943,800.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,426,821.60 : 60,642,856.80 = 21,294,945.60 : x
  2. Step 2: Convert to fraction form
    40,426,821.60/60,642,856.80 = 21,294,945.60/x
  3. Step 3: Cross multiply
    40,426,821.60x = 60,642,856.80 × 21,294,945.60
  4. Step 4: Simplify right side
    40,426,821.60x = 1,291,386,336,584,590
  5. Step 5: Solve for x
    x = 1,291,386,336,584,590/40,426,821.60
  6. Step 6: Final answer
    x = 31,943,800.81

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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.