Home / 66,685,280.40-100,083,907.80-30,349,587.60

Finding the Fourth Proportional to 66,685,280.40, 100,083,907.80 and 30,349,587.60

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Solution

The fourth proportional to 66,685,280.40, 100,083,907.80 and 30,349,587.60 is: 45,549,862.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,685,280.40 : 100,083,907.80 = 30,349,587.60 : x
  2. Step 2: Convert to fraction form
    66,685,280.40/100,083,907.80 = 30,349,587.60/x
  3. Step 3: Cross multiply
    66,685,280.40x = 100,083,907.80 × 30,349,587.60
  4. Step 4: Simplify right side
    66,685,280.40x = 3,037,505,327,126,423.50
  5. Step 5: Solve for x
    x = 3,037,505,327,126,423.50/66,685,280.40
  6. Step 6: Final answer
    x = 45,549,862.11

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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.