Home / 386,412,699.06-533,249,121.20-210,200,274.09

Finding the Fourth Proportional to 386,412,699.06, 533,249,121.20 and 210,200,274.09

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Solution

The fourth proportional to 386,412,699.06, 533,249,121.20 and 210,200,274.09 is: 290,076,158.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,412,699.06 : 533,249,121.20 = 210,200,274.09 : x
  2. Step 2: Convert to fraction form
    386,412,699.06/533,249,121.20 = 210,200,274.09/x
  3. Step 3: Cross multiply
    386,412,699.06x = 533,249,121.20 × 210,200,274.09
  4. Step 4: Simplify right side
    386,412,699.06x = 112,089,111,433,440,624
  5. Step 5: Solve for x
    x = 112,089,111,433,440,624/386,412,699.06
  6. Step 6: Final answer
    x = 290,076,158.74

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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.