Home / 315,026,756.70-472,398,417.45-120,873,644.70

Finding the Fourth Proportional to 315,026,756.70, 472,398,417.45 and 120,873,644.70

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Solution

The fourth proportional to 315,026,756.70, 472,398,417.45 and 120,873,644.70 is: 181,256,090.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,026,756.70 : 472,398,417.45 = 120,873,644.70 : x
  2. Step 2: Convert to fraction form
    315,026,756.70/472,398,417.45 = 120,873,644.70/x
  3. Step 3: Cross multiply
    315,026,756.70x = 472,398,417.45 × 120,873,644.70
  4. Step 4: Simplify right side
    315,026,756.70x = 57,100,518,467,693,576
  5. Step 5: Solve for x
    x = 57,100,518,467,693,576/315,026,756.70
  6. Step 6: Final answer
    x = 181,256,090.96

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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.