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Finding the Fourth Proportional to 9,132,912,681.30, 13,699,369,021.95 and 9,132,912,681.30

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Solution

The fourth proportional to 9,132,912,681.30, 13,699,369,021.95 and 9,132,912,681.30 is: 13,699,369,021.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,132,912,681.30 : 13,699,369,021.95 = 9,132,912,681.30 : x
  2. Step 2: Convert to fraction form
    9,132,912,681.30/13,699,369,021.95 = 9,132,912,681.30/x
  3. Step 3: Cross multiply
    9,132,912,681.30x = 13,699,369,021.95 × 9,132,912,681.30
  4. Step 4: Simplify right side
    9,132,912,681.30x = 125,115,141,066,375,528,448
  5. Step 5: Solve for x
    x = 125,115,141,066,375,528,448/9,132,912,681.30
  6. Step 6: Final answer
    x = 13,699,369,021.95

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Double scale
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1.5x scale

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.