Home / 920,021,869,600.64-1,380,060,918,793.20-315,638,597,121.56

Finding the Fourth Proportional to 920,021,869,600.64, 1,380,060,918,793.20 and 315,638,597,121.56

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Solution

The fourth proportional to 920,021,869,600.64, 1,380,060,918,793.20 and 315,638,597,121.56 is: 473,467,541,091.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,021,869,600.64 : 1,380,060,918,793.20 = 315,638,597,121.56 : x
  2. Step 2: Convert to fraction form
    920,021,869,600.64/1,380,060,918,793.20 = 315,638,597,121.56/x
  3. Step 3: Cross multiply
    920,021,869,600.64x = 1,380,060,918,793.20 × 315,638,597,121.56
  4. Step 4: Simplify right side
    920,021,869,600.64x = 435,600,492,350,176,774,586,368
  5. Step 5: Solve for x
    x = 435,600,492,350,176,774,586,368/920,021,869,600.64
  6. Step 6: Final answer
    x = 473,467,541,091.45

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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.