Home / 1,147,173,620.40-1,720,760,430.60-371,376,048.60

Finding the Fourth Proportional to 1,147,173,620.40, 1,720,760,430.60 and 371,376,048.60

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Solution

The fourth proportional to 1,147,173,620.40, 1,720,760,430.60 and 371,376,048.60 is: 557,064,072.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,147,173,620.40 : 1,720,760,430.60 = 371,376,048.60 : x
  2. Step 2: Convert to fraction form
    1,147,173,620.40/1,720,760,430.60 = 371,376,048.60/x
  3. Step 3: Cross multiply
    1,147,173,620.40x = 1,720,760,430.60 × 371,376,048.60
  4. Step 4: Simplify right side
    1,147,173,620.40x = 639,049,209,303,462,528
  5. Step 5: Solve for x
    x = 639,049,209,303,462,528/1,147,173,620.40
  6. Step 6: Final answer
    x = 557,064,072.90

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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.