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Finding the Fourth Proportional to 13,700,460,772.15, 19,139,320,228.85 and 13,700,460,772.15

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Solution

The fourth proportional to 13,700,460,772.15, 19,139,320,228.85 and 13,700,460,772.15 is: 19,139,320,228.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,700,460,772.15 : 19,139,320,228.85 = 13,700,460,772.15 : x
  2. Step 2: Convert to fraction form
    13,700,460,772.15/19,139,320,228.85 = 13,700,460,772.15/x
  3. Step 3: Cross multiply
    13,700,460,772.15x = 19,139,320,228.85 × 13,700,460,772.15
  4. Step 4: Simplify right side
    13,700,460,772.15x = 262,217,506,000,976,347,136
  5. Step 5: Solve for x
    x = 262,217,506,000,976,347,136/13,700,460,772.15
  6. Step 6: Final answer
    x = 19,139,320,228.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.