Home / 66,428,287.40-99,642,431.10-30,596,479.40

Finding the Fourth Proportional to 66,428,287.40, 99,642,431.10 and 30,596,479.40

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Solution

The fourth proportional to 66,428,287.40, 99,642,431.10 and 30,596,479.40 is: 45,894,719.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,428,287.40 : 99,642,431.10 = 30,596,479.40 : x
  2. Step 2: Convert to fraction form
    66,428,287.40/99,642,431.10 = 30,596,479.40/x
  3. Step 3: Cross multiply
    66,428,287.40x = 99,642,431.10 × 30,596,479.40
  4. Step 4: Simplify right side
    66,428,287.40x = 3,048,707,590,517,069
  5. Step 5: Solve for x
    x = 3,048,707,590,517,069/66,428,287.40
  6. Step 6: Final answer
    x = 45,894,719.10

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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.