Home / 280,680,755.40-387,319,779.14-163,197,750.74

Finding the Fourth Proportional to 280,680,755.40, 387,319,779.14 and 163,197,750.74

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Solution

The fourth proportional to 280,680,755.40, 387,319,779.14 and 163,197,750.74 is: 225,201,463.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,680,755.40 : 387,319,779.14 = 163,197,750.74 : x
  2. Step 2: Convert to fraction form
    280,680,755.40/387,319,779.14 = 163,197,750.74/x
  3. Step 3: Cross multiply
    280,680,755.40x = 387,319,779.14 × 163,197,750.74
  4. Step 4: Simplify right side
    280,680,755.40x = 63,209,716,770,008,984
  5. Step 5: Solve for x
    x = 63,209,716,770,008,984/280,680,755.40
  6. Step 6: Final answer
    x = 225,201,463.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.