Home / 280,039,409.40-420,059,114.10-242,290,673.40

Finding the Fourth Proportional to 280,039,409.40, 420,059,114.10 and 242,290,673.40

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Solution

The fourth proportional to 280,039,409.40, 420,059,114.10 and 242,290,673.40 is: 363,436,010.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,039,409.40 : 420,059,114.10 = 242,290,673.40 : x
  2. Step 2: Convert to fraction form
    280,039,409.40/420,059,114.10 = 242,290,673.40/x
  3. Step 3: Cross multiply
    280,039,409.40x = 420,059,114.10 × 242,290,673.40
  4. Step 4: Simplify right side
    280,039,409.40x = 101,776,405,623,096,448
  5. Step 5: Solve for x
    x = 101,776,405,623,096,448/280,039,409.40
  6. Step 6: Final answer
    x = 363,436,010.10

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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.