Home / 808,925,823.70-1,117,088,608.08-764,856,109.78

Finding the Fourth Proportional to 808,925,823.70, 1,117,088,608.08 and 764,856,109.78

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Solution

The fourth proportional to 808,925,823.70, 1,117,088,608.08 and 764,856,109.78 is: 1,056,230,400.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,925,823.70 : 1,117,088,608.08 = 764,856,109.78 : x
  2. Step 2: Convert to fraction form
    808,925,823.70/1,117,088,608.08 = 764,856,109.78/x
  3. Step 3: Cross multiply
    808,925,823.70x = 1,117,088,608.08 × 764,856,109.78
  4. Step 4: Simplify right side
    808,925,823.70x = 854,412,047,055,623,808
  5. Step 5: Solve for x
    x = 854,412,047,055,623,808/808,925,823.70
  6. Step 6: Final answer
    x = 1,056,230,400.89

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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.