Home / 64,480,031.60-96,720,047.40-21,355,890.80

Finding the Fourth Proportional to 64,480,031.60, 96,720,047.40 and 21,355,890.80

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Solution

The fourth proportional to 64,480,031.60, 96,720,047.40 and 21,355,890.80 is: 32,033,836.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,480,031.60 : 96,720,047.40 = 21,355,890.80 : x
  2. Step 2: Convert to fraction form
    64,480,031.60/96,720,047.40 = 21,355,890.80/x
  3. Step 3: Cross multiply
    64,480,031.60x = 96,720,047.40 × 21,355,890.80
  4. Step 4: Simplify right side
    64,480,031.60x = 2,065,542,770,445,224
  5. Step 5: Solve for x
    x = 2,065,542,770,445,224/64,480,031.60
  6. Step 6: Final answer
    x = 32,033,836.20

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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.