Home / 550,077,969-759,215,430.90-315,286,000.32

Finding the Fourth Proportional to 550,077,969, 759,215,430.90 and 315,286,000.32

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Solution

The fourth proportional to 550,077,969, 759,215,430.90 and 315,286,000.32 is: 435,156,487.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,077,969 : 759,215,430.90 = 315,286,000.32 : x
  2. Step 2: Convert to fraction form
    550,077,969/759,215,430.90 = 315,286,000.32/x
  3. Step 3: Cross multiply
    550,077,969x = 759,215,430.90 × 315,286,000.32
  4. Step 4: Simplify right side
    550,077,969x = 239,369,996,589,686,336
  5. Step 5: Solve for x
    x = 239,369,996,589,686,336/550,077,969
  6. Step 6: Final answer
    x = 435,156,487.04

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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.