Home / 209,955,985.20-314,933,977.80-200,390,047.20

Finding the Fourth Proportional to 209,955,985.20, 314,933,977.80 and 200,390,047.20

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Solution

The fourth proportional to 209,955,985.20, 314,933,977.80 and 200,390,047.20 is: 300,585,070.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,955,985.20 : 314,933,977.80 = 200,390,047.20 : x
  2. Step 2: Convert to fraction form
    209,955,985.20/314,933,977.80 = 200,390,047.20/x
  3. Step 3: Cross multiply
    209,955,985.20x = 314,933,977.80 × 200,390,047.20
  4. Step 4: Simplify right side
    209,955,985.20x = 63,109,634,676,225,752
  5. Step 5: Solve for x
    x = 63,109,634,676,225,752/209,955,985.20
  6. Step 6: Final answer
    x = 300,585,070.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.