Home / 1,440,443,499.16-1,987,804,222.20-805,363,869.12

Finding the Fourth Proportional to 1,440,443,499.16, 1,987,804,222.20 and 805,363,869.12

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Solution

The fourth proportional to 1,440,443,499.16, 1,987,804,222.20 and 805,363,869.12 is: 1,111,397,774.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,440,443,499.16 : 1,987,804,222.20 = 805,363,869.12 : x
  2. Step 2: Convert to fraction form
    1,440,443,499.16/1,987,804,222.20 = 805,363,869.12/x
  3. Step 3: Cross multiply
    1,440,443,499.16x = 1,987,804,222.20 × 805,363,869.12
  4. Step 4: Simplify right side
    1,440,443,499.16x = 1,600,905,699,444,064,256
  5. Step 5: Solve for x
    x = 1,600,905,699,444,064,256/1,440,443,499.16
  6. Step 6: Final answer
    x = 1,111,397,774.63

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.