Home / 315,008,005.80-472,512,008.70-238,480,501.80

Finding the Fourth Proportional to 315,008,005.80, 472,512,008.70 and 238,480,501.80

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Solution

The fourth proportional to 315,008,005.80, 472,512,008.70 and 238,480,501.80 is: 357,720,752.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,008,005.80 : 472,512,008.70 = 238,480,501.80 : x
  2. Step 2: Convert to fraction form
    315,008,005.80/472,512,008.70 = 238,480,501.80/x
  3. Step 3: Cross multiply
    315,008,005.80x = 472,512,008.70 × 238,480,501.80
  4. Step 4: Simplify right side
    315,008,005.80x = 112,684,900,941,301,968
  5. Step 5: Solve for x
    x = 112,684,900,941,301,968/315,008,005.80
  6. Step 6: Final answer
    x = 357,720,752.70

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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.