Home / 65,323,460.34-90,100,479.76-42,989,330.55

Finding the Fourth Proportional to 65,323,460.34, 90,100,479.76 and 42,989,330.55

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Solution

The fourth proportional to 65,323,460.34, 90,100,479.76 and 42,989,330.55 is: 59,295,072.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,323,460.34 : 90,100,479.76 = 42,989,330.55 : x
  2. Step 2: Convert to fraction form
    65,323,460.34/90,100,479.76 = 42,989,330.55/x
  3. Step 3: Cross multiply
    65,323,460.34x = 90,100,479.76 × 42,989,330.55
  4. Step 4: Simplify right side
    65,323,460.34x = 3,873,359,306,832,085
  5. Step 5: Solve for x
    x = 3,873,359,306,832,085/65,323,460.34
  6. Step 6: Final answer
    x = 59,295,072.34

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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.