Home / 145,342,664,612.76-200,564,508,858.06-81,108,347,536.92

Finding the Fourth Proportional to 145,342,664,612.76, 200,564,508,858.06 and 81,108,347,536.92

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Solution

The fourth proportional to 145,342,664,612.76, 200,564,508,858.06 and 81,108,347,536.92 is: 111,924,849,674.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,342,664,612.76 : 200,564,508,858.06 = 81,108,347,536.92 : x
  2. Step 2: Convert to fraction form
    145,342,664,612.76/200,564,508,858.06 = 81,108,347,536.92/x
  3. Step 3: Cross multiply
    145,342,664,612.76x = 200,564,508,858.06 × 81,108,347,536.92
  4. Step 4: Simplify right side
    145,342,664,612.76x = 16,267,455,888,031,198,740,480
  5. Step 5: Solve for x
    x = 16,267,455,888,031,198,740,480/145,342,664,612.76
  6. Step 6: Final answer
    x = 111,924,849,674.20

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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.