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Finding the Fourth Proportional to 5,327,021,856.90, 7,470,075,000.30 and 5,327,021,856.90

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Solution

The fourth proportional to 5,327,021,856.90, 7,470,075,000.30 and 5,327,021,856.90 is: 7,470,075,000.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,327,021,856.90 : 7,470,075,000.30 = 5,327,021,856.90 : x
  2. Step 2: Convert to fraction form
    5,327,021,856.90/7,470,075,000.30 = 5,327,021,856.90/x
  3. Step 3: Cross multiply
    5,327,021,856.90x = 7,470,075,000.30 × 5,327,021,856.90
  4. Step 4: Simplify right side
    5,327,021,856.90x = 39,793,252,799,280,373,760
  5. Step 5: Solve for x
    x = 39,793,252,799,280,373,760/5,327,021,856.90
  6. Step 6: Final answer
    x = 7,470,075,000.30

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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.