Home / 315,430,000.20-473,145,000.30-100,019,248.20

Finding the Fourth Proportional to 315,430,000.20, 473,145,000.30 and 100,019,248.20

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Solution

The fourth proportional to 315,430,000.20, 473,145,000.30 and 100,019,248.20 is: 150,028,872.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,430,000.20 : 473,145,000.30 = 100,019,248.20 : x
  2. Step 2: Convert to fraction form
    315,430,000.20/473,145,000.30 = 100,019,248.20/x
  3. Step 3: Cross multiply
    315,430,000.20x = 473,145,000.30 × 100,019,248.20
  4. Step 4: Simplify right side
    315,430,000.20x = 47,323,607,219,594,776
  5. Step 5: Solve for x
    x = 47,323,607,219,594,776/315,430,000.20
  6. Step 6: Final answer
    x = 150,028,872.30

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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.