Home / 1,319,150,386.90-1,980,678,133.95-738,045,241.30

Finding the Fourth Proportional to 1,319,150,386.90, 1,980,678,133.95 and 738,045,241.30

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Solution

The fourth proportional to 1,319,150,386.90, 1,980,678,133.95 and 738,045,241.30 is: 1,108,160,286.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,150,386.90 : 1,980,678,133.95 = 738,045,241.30 : x
  2. Step 2: Convert to fraction form
    1,319,150,386.90/1,980,678,133.95 = 738,045,241.30/x
  3. Step 3: Cross multiply
    1,319,150,386.90x = 1,980,678,133.95 × 738,045,241.30
  4. Step 4: Simplify right side
    1,319,150,386.90x = 1,461,830,071,308,761,344
  5. Step 5: Solve for x
    x = 1,461,830,071,308,761,344/1,319,150,386.90
  6. Step 6: Final answer
    x = 1,108,160,286.97

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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.