Home / 786,540,577.20-1,085,428,187.91-429,311,579.46

Finding the Fourth Proportional to 786,540,577.20, 1,085,428,187.91 and 429,311,579.46

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Solution

The fourth proportional to 786,540,577.20, 1,085,428,187.91 and 429,311,579.46 is: 592,451,175.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,540,577.20 : 1,085,428,187.91 = 429,311,579.46 : x
  2. Step 2: Convert to fraction form
    786,540,577.20/1,085,428,187.91 = 429,311,579.46/x
  3. Step 3: Cross multiply
    786,540,577.20x = 1,085,428,187.91 × 429,311,579.46
  4. Step 4: Simplify right side
    786,540,577.20x = 465,986,889,742,047,808
  5. Step 5: Solve for x
    x = 465,986,889,742,047,808/786,540,577.20
  6. Step 6: Final answer
    x = 592,451,175.76

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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.