Home / 1,681,514,551.80-2,522,271,827.70-981,287,890.20

Finding the Fourth Proportional to 1,681,514,551.80, 2,522,271,827.70 and 981,287,890.20

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Solution

The fourth proportional to 1,681,514,551.80, 2,522,271,827.70 and 981,287,890.20 is: 1,471,931,835.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,681,514,551.80 : 2,522,271,827.70 = 981,287,890.20 : x
  2. Step 2: Convert to fraction form
    1,681,514,551.80/2,522,271,827.70 = 981,287,890.20/x
  3. Step 3: Cross multiply
    1,681,514,551.80x = 2,522,271,827.70 × 981,287,890.20
  4. Step 4: Simplify right side
    1,681,514,551.80x = 2,475,074,800,314,630,656
  5. Step 5: Solve for x
    x = 2,475,074,800,314,630,656/1,681,514,551.80
  6. Step 6: Final answer
    x = 1,471,931,835.30

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Double scale
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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.