Home / 289,160,243,999.90-433,740,365,999.85-102,978,169,631.90

Finding the Fourth Proportional to 289,160,243,999.90, 433,740,365,999.85 and 102,978,169,631.90

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Solution

The fourth proportional to 289,160,243,999.90, 433,740,365,999.85 and 102,978,169,631.90 is: 154,467,254,447.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,160,243,999.90 : 433,740,365,999.85 = 102,978,169,631.90 : x
  2. Step 2: Convert to fraction form
    289,160,243,999.90/433,740,365,999.85 = 102,978,169,631.90/x
  3. Step 3: Cross multiply
    289,160,243,999.90x = 433,740,365,999.85 × 102,978,169,631.90
  4. Step 4: Simplify right side
    289,160,243,999.90x = 44,665,788,986,134,938,779,648
  5. Step 5: Solve for x
    x = 44,665,788,986,134,938,779,648/289,160,243,999.90
  6. Step 6: Final answer
    x = 154,467,254,447.85

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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.