Home / 56,893,086.20-78,512,459.05-30,787,604.02

Finding the Fourth Proportional to 56,893,086.20, 78,512,459.05 and 30,787,604.02

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Solution

The fourth proportional to 56,893,086.20, 78,512,459.05 and 30,787,604.02 is: 42,486,893.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,893,086.20 : 78,512,459.05 = 30,787,604.02 : x
  2. Step 2: Convert to fraction form
    56,893,086.20/78,512,459.05 = 30,787,604.02/x
  3. Step 3: Cross multiply
    56,893,086.20x = 78,512,459.05 × 30,787,604.02
  4. Step 4: Simplify right side
    56,893,086.20x = 2,417,210,499,475,303
  5. Step 5: Solve for x
    x = 2,417,210,499,475,303/56,893,086.20
  6. Step 6: Final answer
    x = 42,486,893.60

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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.