Home / 1,170,072,352.63-1,614,801,998.76-641,538,490.72

Finding the Fourth Proportional to 1,170,072,352.63, 1,614,801,998.76 and 641,538,490.72

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Solution

The fourth proportional to 1,170,072,352.63, 1,614,801,998.76 and 641,538,490.72 is: 885,379,126.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,170,072,352.63 : 1,614,801,998.76 = 641,538,490.72 : x
  2. Step 2: Convert to fraction form
    1,170,072,352.63/1,614,801,998.76 = 641,538,490.72/x
  3. Step 3: Cross multiply
    1,170,072,352.63x = 1,614,801,998.76 × 641,538,490.72
  4. Step 4: Simplify right side
    1,170,072,352.63x = 1,035,957,637,096,129,792
  5. Step 5: Solve for x
    x = 1,035,957,637,096,129,792/1,170,072,352.63
  6. Step 6: Final answer
    x = 885,379,126.14

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Double scale
Find fourth proportional to 1,170,072,353.63, 1,614,802,000.14 and 641,538,491.72
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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.