Home / 261,893,318.01-361,421,503.76-142,822,406.91

Finding the Fourth Proportional to 261,893,318.01, 361,421,503.76 and 142,822,406.91

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Solution

The fourth proportional to 261,893,318.01, 361,421,503.76 and 142,822,406.91 is: 197,099,679.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,893,318.01 : 361,421,503.76 = 142,822,406.91 : x
  2. Step 2: Convert to fraction form
    261,893,318.01/361,421,503.76 = 142,822,406.91/x
  3. Step 3: Cross multiply
    261,893,318.01x = 361,421,503.76 × 142,822,406.91
  4. Step 4: Simplify right side
    261,893,318.01x = 51,619,089,076,804,264
  5. Step 5: Solve for x
    x = 51,619,089,076,804,264/261,893,318.01
  6. Step 6: Final answer
    x = 197,099,679.63

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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.