Home / 871,008,087.40-1,306,512,131.10-435,651,620.20

Finding the Fourth Proportional to 871,008,087.40, 1,306,512,131.10 and 435,651,620.20

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Solution

The fourth proportional to 871,008,087.40, 1,306,512,131.10 and 435,651,620.20 is: 653,477,430.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,008,087.40 : 1,306,512,131.10 = 435,651,620.20 : x
  2. Step 2: Convert to fraction form
    871,008,087.40/1,306,512,131.10 = 435,651,620.20/x
  3. Step 3: Cross multiply
    871,008,087.40x = 1,306,512,131.10 × 435,651,620.20
  4. Step 4: Simplify right side
    871,008,087.40x = 569,184,126,724,669,760
  5. Step 5: Solve for x
    x = 569,184,126,724,669,760/871,008,087.40
  6. Step 6: Final answer
    x = 653,477,430.30

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Double scale
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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.