Home / 847,872,132.70-1,271,808,199.05-265,655,019.10

Finding the Fourth Proportional to 847,872,132.70, 1,271,808,199.05 and 265,655,019.10

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Solution

The fourth proportional to 847,872,132.70, 1,271,808,199.05 and 265,655,019.10 is: 398,482,528.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,872,132.70 : 1,271,808,199.05 = 265,655,019.10 : x
  2. Step 2: Convert to fraction form
    847,872,132.70/1,271,808,199.05 = 265,655,019.10/x
  3. Step 3: Cross multiply
    847,872,132.70x = 1,271,808,199.05 × 265,655,019.10
  4. Step 4: Simplify right side
    847,872,132.70x = 337,862,231,410,164,352
  5. Step 5: Solve for x
    x = 337,862,231,410,164,352/847,872,132.70
  6. Step 6: Final answer
    x = 398,482,528.65

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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.