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Finding the Fourth Proportional to 808,733,793.60, 1,213,100,690.40 and 776,989,051.20

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Solution

The fourth proportional to 808,733,793.60, 1,213,100,690.40 and 776,989,051.20 is: 1,165,483,576.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,733,793.60 : 1,213,100,690.40 = 776,989,051.20 : x
  2. Step 2: Convert to fraction form
    808,733,793.60/1,213,100,690.40 = 776,989,051.20/x
  3. Step 3: Cross multiply
    808,733,793.60x = 1,213,100,690.40 × 776,989,051.20
  4. Step 4: Simplify right side
    808,733,793.60x = 942,565,954,443,961,088
  5. Step 5: Solve for x
    x = 942,565,954,443,961,088/808,733,793.60
  6. Step 6: Final answer
    x = 1,165,483,576.80

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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.