Home / 508,812,145.60-763,218,218.40-347,569,009.60

Finding the Fourth Proportional to 508,812,145.60, 763,218,218.40 and 347,569,009.60

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Solution

The fourth proportional to 508,812,145.60, 763,218,218.40 and 347,569,009.60 is: 521,353,514.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,812,145.60 : 763,218,218.40 = 347,569,009.60 : x
  2. Step 2: Convert to fraction form
    508,812,145.60/763,218,218.40 = 347,569,009.60/x
  3. Step 3: Cross multiply
    508,812,145.60x = 763,218,218.40 × 347,569,009.60
  4. Step 4: Simplify right side
    508,812,145.60x = 265,271,000,277,964,512
  5. Step 5: Solve for x
    x = 265,271,000,277,964,512/508,812,145.60
  6. Step 6: Final answer
    x = 521,353,514.40

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Similar ratio
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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.