Home / 1,025,866,971.73-1,538,924,980.34-288,936,877.20

Finding the Fourth Proportional to 1,025,866,971.73, 1,538,924,980.34 and 288,936,877.20

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Solution

The fourth proportional to 1,025,866,971.73, 1,538,924,980.34 and 288,936,877.20 is: 433,440,387.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,025,866,971.73 : 1,538,924,980.34 = 288,936,877.20 : x
  2. Step 2: Convert to fraction form
    1,025,866,971.73/1,538,924,980.34 = 288,936,877.20/x
  3. Step 3: Cross multiply
    1,025,866,971.73x = 1,538,924,980.34 × 288,936,877.20
  4. Step 4: Simplify right side
    1,025,866,971.73x = 444,652,178,064,510,976
  5. Step 5: Solve for x
    x = 444,652,178,064,510,976/1,025,866,971.73
  6. Step 6: Final answer
    x = 433,440,387.81

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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.