Home / 1,482,042,120.10-2,045,221,230.08-812,992,567.79

Finding the Fourth Proportional to 1,482,042,120.10, 2,045,221,230.08 and 812,992,567.79

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Solution

The fourth proportional to 1,482,042,120.10, 2,045,221,230.08 and 812,992,567.79 is: 1,121,931,446.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,482,042,120.10 : 2,045,221,230.08 = 812,992,567.79 : x
  2. Step 2: Convert to fraction form
    1,482,042,120.10/2,045,221,230.08 = 812,992,567.79/x
  3. Step 3: Cross multiply
    1,482,042,120.10x = 2,045,221,230.08 × 812,992,567.79
  4. Step 4: Simplify right side
    1,482,042,120.10x = 1,662,749,659,548,425,984
  5. Step 5: Solve for x
    x = 1,662,749,659,548,425,984/1,482,042,120.10
  6. Step 6: Final answer
    x = 1,121,931,446.48

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Double scale
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1.5x scale

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.