Home / 716,600,824.74-988,399,722.70-478,325,870.92

Finding the Fourth Proportional to 716,600,824.74, 988,399,722.70 and 478,325,870.92

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Solution

The fourth proportional to 716,600,824.74, 988,399,722.70 and 478,325,870.92 is: 659,749,670.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,600,824.74 : 988,399,722.70 = 478,325,870.92 : x
  2. Step 2: Convert to fraction form
    716,600,824.74/988,399,722.70 = 478,325,870.92/x
  3. Step 3: Cross multiply
    716,600,824.74x = 988,399,722.70 × 478,325,870.92
  4. Step 4: Simplify right side
    716,600,824.74x = 472,777,158,173,168,512
  5. Step 5: Solve for x
    x = 472,777,158,173,168,512/716,600,824.74
  6. Step 6: Final answer
    x = 659,749,670.74

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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.