Home / 261,889,600.68-361,416,373.80-142,818,706.88

Finding the Fourth Proportional to 261,889,600.68, 361,416,373.80 and 142,818,706.88

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Solution

The fourth proportional to 261,889,600.68, 361,416,373.80 and 142,818,706.88 is: 197,094,573.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,889,600.68 : 361,416,373.80 = 142,818,706.88 : x
  2. Step 2: Convert to fraction form
    261,889,600.68/361,416,373.80 = 142,818,706.88/x
  3. Step 3: Cross multiply
    261,889,600.68x = 361,416,373.80 × 142,818,706.88
  4. Step 4: Simplify right side
    261,889,600.68x = 51,617,019,151,374,712
  5. Step 5: Solve for x
    x = 51,617,019,151,374,712/261,889,600.68
  6. Step 6: Final answer
    x = 197,094,573.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.