Home / 315,523,821.68-475,439,415.02-259,276,106.24

Finding the Fourth Proportional to 315,523,821.68, 475,439,415.02 and 259,276,106.24

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Solution

The fourth proportional to 315,523,821.68, 475,439,415.02 and 259,276,106.24 is: 390,683,909.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,523,821.68 : 475,439,415.02 = 259,276,106.24 : x
  2. Step 2: Convert to fraction form
    315,523,821.68/475,439,415.02 = 259,276,106.24/x
  3. Step 3: Cross multiply
    315,523,821.68x = 475,439,415.02 × 259,276,106.24
  4. Step 4: Simplify right side
    315,523,821.68x = 123,270,080,279,408,976
  5. Step 5: Solve for x
    x = 123,270,080,279,408,976/315,523,821.68
  6. Step 6: Final answer
    x = 390,683,909.77

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.