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Finding the Fourth Proportional to 15,931,448,909.30, 22,260,492,826.30 and 15,931,448,909.30

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Solution

The fourth proportional to 15,931,448,909.30, 22,260,492,826.30 and 15,931,448,909.30 is: 22,260,492,826.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,931,448,909.30 : 22,260,492,826.30 = 15,931,448,909.30 : x
  2. Step 2: Convert to fraction form
    15,931,448,909.30/22,260,492,826.30 = 15,931,448,909.30/x
  3. Step 3: Cross multiply
    15,931,448,909.30x = 22,260,492,826.30 × 15,931,448,909.30
  4. Step 4: Simplify right side
    15,931,448,909.30x = 354,641,904,158,037,573,632
  5. Step 5: Solve for x
    x = 354,641,904,158,037,573,632/15,931,448,909.30
  6. Step 6: Final answer
    x = 22,260,492,826.30

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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.