Home / 201,547,225.20-302,320,837.80-86,512,191.60

Finding the Fourth Proportional to 201,547,225.20, 302,320,837.80 and 86,512,191.60

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Solution

The fourth proportional to 201,547,225.20, 302,320,837.80 and 86,512,191.60 is: 129,768,287.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,547,225.20 : 302,320,837.80 = 86,512,191.60 : x
  2. Step 2: Convert to fraction form
    201,547,225.20/302,320,837.80 = 86,512,191.60/x
  3. Step 3: Cross multiply
    201,547,225.20x = 302,320,837.80 × 86,512,191.60
  4. Step 4: Simplify right side
    201,547,225.20x = 26,154,438,244,426,120
  5. Step 5: Solve for x
    x = 26,154,438,244,426,120/201,547,225.20
  6. Step 6: Final answer
    x = 129,768,287.40

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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.