Home / 165,514,347,126.40-248,271,520,689.60-81,831,521,502.40

Finding the Fourth Proportional to 165,514,347,126.40, 248,271,520,689.60 and 81,831,521,502.40

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Solution

The fourth proportional to 165,514,347,126.40, 248,271,520,689.60 and 81,831,521,502.40 is: 122,747,282,253.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,514,347,126.40 : 248,271,520,689.60 = 81,831,521,502.40 : x
  2. Step 2: Convert to fraction form
    165,514,347,126.40/248,271,520,689.60 = 81,831,521,502.40/x
  3. Step 3: Cross multiply
    165,514,347,126.40x = 248,271,520,689.60 × 81,831,521,502.40
  4. Step 4: Simplify right side
    165,514,347,126.40x = 20,316,436,283,744,548,028,416
  5. Step 5: Solve for x
    x = 20,316,436,283,744,548,028,416/165,514,347,126.40
  6. Step 6: Final answer
    x = 122,747,282,253.60

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Double scale
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1.5x scale

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.