Home / 1,118,983,091.88-1,678,111,433.10-371,798,205.12

Finding the Fourth Proportional to 1,118,983,091.88, 1,678,111,433.10 and 371,798,205.12

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Solution

The fourth proportional to 1,118,983,091.88, 1,678,111,433.10 and 371,798,205.12 is: 557,576,627.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118,983,091.88 : 1,678,111,433.10 = 371,798,205.12 : x
  2. Step 2: Convert to fraction form
    1,118,983,091.88/1,678,111,433.10 = 371,798,205.12/x
  3. Step 3: Cross multiply
    1,118,983,091.88x = 1,678,111,433.10 × 371,798,205.12
  4. Step 4: Simplify right side
    1,118,983,091.88x = 623,918,818,817,930,880
  5. Step 5: Solve for x
    x = 623,918,818,817,930,880/1,118,983,091.88
  6. Step 6: Final answer
    x = 557,576,627.69

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Double scale
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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.