Home / 485,066,739.60-727,694,587.80-140,031,622.80

Finding the Fourth Proportional to 485,066,739.60, 727,694,587.80 and 140,031,622.80

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Solution

The fourth proportional to 485,066,739.60, 727,694,587.80 and 140,031,622.80 is: 210,074,708.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,066,739.60 : 727,694,587.80 = 140,031,622.80 : x
  2. Step 2: Convert to fraction form
    485,066,739.60/727,694,587.80 = 140,031,622.80/x
  3. Step 3: Cross multiply
    485,066,739.60x = 727,694,587.80 × 140,031,622.80
  4. Step 4: Simplify right side
    485,066,739.60x = 101,900,254,032,411,088
  5. Step 5: Solve for x
    x = 101,900,254,032,411,088/485,066,739.60
  6. Step 6: Final answer
    x = 210,074,708.72

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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.