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Finding the Fourth Proportional to 8,653,144,983.90, 12,141,952,878.90 and 8,653,144,983.90

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Solution

The fourth proportional to 8,653,144,983.90, 12,141,952,878.90 and 8,653,144,983.90 is: 12,141,952,878.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,653,144,983.90 : 12,141,952,878.90 = 8,653,144,983.90 : x
  2. Step 2: Convert to fraction form
    8,653,144,983.90/12,141,952,878.90 = 8,653,144,983.90/x
  3. Step 3: Cross multiply
    8,653,144,983.90x = 12,141,952,878.90 × 8,653,144,983.90
  4. Step 4: Simplify right side
    8,653,144,983.90x = 105,066,078,648,803,688,448
  5. Step 5: Solve for x
    x = 105,066,078,648,803,688,448/8,653,144,983.90
  6. Step 6: Final answer
    x = 12,141,952,878.90

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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.