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Finding the Fourth Proportional to 15,139,185,965.40, 22,708,778,948.10 and 15,139,185,965.40

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Solution

The fourth proportional to 15,139,185,965.40, 22,708,778,948.10 and 15,139,185,965.40 is: 22,708,778,948.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,139,185,965.40 : 22,708,778,948.10 = 15,139,185,965.40 : x
  2. Step 2: Convert to fraction form
    15,139,185,965.40/22,708,778,948.10 = 15,139,185,965.40/x
  3. Step 3: Cross multiply
    15,139,185,965.40x = 22,708,778,948.10 × 15,139,185,965.40
  4. Step 4: Simplify right side
    15,139,185,965.40x = 343,792,427,542,446,473,216
  5. Step 5: Solve for x
    x = 343,792,427,542,446,473,216/15,139,185,965.40
  6. Step 6: Final answer
    x = 22,708,778,948.10

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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.