Home / 206,698,632.76-285,184,927.02-122,996,809.72

Finding the Fourth Proportional to 206,698,632.76, 285,184,927.02 and 122,996,809.72

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Solution

The fourth proportional to 206,698,632.76, 285,184,927.02 and 122,996,809.72 is: 169,700,378.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,698,632.76 : 285,184,927.02 = 122,996,809.72 : x
  2. Step 2: Convert to fraction form
    206,698,632.76/285,184,927.02 = 122,996,809.72/x
  3. Step 3: Cross multiply
    206,698,632.76x = 285,184,927.02 × 122,996,809.72
  4. Step 4: Simplify right side
    206,698,632.76x = 35,076,836,203,691,024
  5. Step 5: Solve for x
    x = 35,076,836,203,691,024/206,698,632.76
  6. Step 6: Final answer
    x = 169,700,378.45

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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.