Home / 280,174,273.40-420,261,410.10-98,421,451.40

Finding the Fourth Proportional to 280,174,273.40, 420,261,410.10 and 98,421,451.40

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Solution

The fourth proportional to 280,174,273.40, 420,261,410.10 and 98,421,451.40 is: 147,632,177.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,174,273.40 : 420,261,410.10 = 98,421,451.40 : x
  2. Step 2: Convert to fraction form
    280,174,273.40/420,261,410.10 = 98,421,451.40/x
  3. Step 3: Cross multiply
    280,174,273.40x = 420,261,410.10 × 98,421,451.40
  4. Step 4: Simplify right side
    280,174,273.40x = 41,362,737,949,452,624
  5. Step 5: Solve for x
    x = 41,362,737,949,452,624/280,174,273.40
  6. Step 6: Final answer
    x = 147,632,177.10

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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.