Home / 256,519,246.20-384,778,869.30-74,772,353.40

Finding the Fourth Proportional to 256,519,246.20, 384,778,869.30 and 74,772,353.40

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Solution

The fourth proportional to 256,519,246.20, 384,778,869.30 and 74,772,353.40 is: 112,158,530.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,519,246.20 : 384,778,869.30 = 74,772,353.40 : x
  2. Step 2: Convert to fraction form
    256,519,246.20/384,778,869.30 = 74,772,353.40/x
  3. Step 3: Cross multiply
    256,519,246.20x = 384,778,869.30 × 74,772,353.40
  4. Step 4: Simplify right side
    256,519,246.20x = 28,770,821,596,152,012
  5. Step 5: Solve for x
    x = 28,770,821,596,152,012/256,519,246.20
  6. Step 6: Final answer
    x = 112,158,530.10

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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.