Home / 66,441,798.30-99,662,697.45-30,609,990.30

Finding the Fourth Proportional to 66,441,798.30, 99,662,697.45 and 30,609,990.30

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Solution

The fourth proportional to 66,441,798.30, 99,662,697.45 and 30,609,990.30 is: 45,914,985.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,441,798.30 : 99,662,697.45 = 30,609,990.30 : x
  2. Step 2: Convert to fraction form
    66,441,798.30/99,662,697.45 = 30,609,990.30/x
  3. Step 3: Cross multiply
    66,441,798.30x = 99,662,697.45 × 30,609,990.30
  4. Step 4: Simplify right side
    66,441,798.30x = 3,050,674,202,216,335
  5. Step 5: Solve for x
    x = 3,050,674,202,216,335/66,441,798.30
  6. Step 6: Final answer
    x = 45,914,985.45

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Double scale
Find fourth proportional to 66,441,799.30, 99,662,698.95 and 30,609,991.30
Similar ratio
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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.