Home / 1,245,584,740.80-1,867,101,652.80-727,748,630.40

Finding the Fourth Proportional to 1,245,584,740.80, 1,867,101,652.80 and 727,748,630.40

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Solution

The fourth proportional to 1,245,584,740.80, 1,867,101,652.80 and 727,748,630.40 is: 1,090,877,742.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,584,740.80 : 1,867,101,652.80 = 727,748,630.40 : x
  2. Step 2: Convert to fraction form
    1,245,584,740.80/1,867,101,652.80 = 727,748,630.40/x
  3. Step 3: Cross multiply
    1,245,584,740.80x = 1,867,101,652.80 × 727,748,630.40
  4. Step 4: Simplify right side
    1,245,584,740.80x = 1,358,780,670,642,776,320
  5. Step 5: Solve for x
    x = 1,358,780,670,642,776,320/1,245,584,740.80
  6. Step 6: Final answer
    x = 1,090,877,742.91

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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.