Home / 660,056,801.40-990,085,385.57-245,479,454.96

Finding the Fourth Proportional to 660,056,801.40, 990,085,385.57 and 245,479,454.96

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Solution

The fourth proportional to 660,056,801.40, 990,085,385.57 and 245,479,454.96 is: 368,219,250.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,056,801.40 : 990,085,385.57 = 245,479,454.96 : x
  2. Step 2: Convert to fraction form
    660,056,801.40/990,085,385.57 = 245,479,454.96/x
  3. Step 3: Cross multiply
    660,056,801.40x = 990,085,385.57 × 245,479,454.96
  4. Step 4: Simplify right side
    660,056,801.40x = 243,045,620,807,407,264
  5. Step 5: Solve for x
    x = 243,045,620,807,407,264/660,056,801.40
  6. Step 6: Final answer
    x = 368,219,250.66

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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.