Home / 1,409,026,861.64-1,944,403,798.21-782,535,645.78

Finding the Fourth Proportional to 1,409,026,861.64, 1,944,403,798.21 and 782,535,645.78

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Solution

The fourth proportional to 1,409,026,861.64, 1,944,403,798.21 and 782,535,645.78 is: 1,079,869,605.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,409,026,861.64 : 1,944,403,798.21 = 782,535,645.78 : x
  2. Step 2: Convert to fraction form
    1,409,026,861.64/1,944,403,798.21 = 782,535,645.78/x
  3. Step 3: Cross multiply
    1,409,026,861.64x = 1,944,403,798.21 × 782,535,645.78
  4. Step 4: Simplify right side
    1,409,026,861.64x = 1,521,565,281,889,347,072
  5. Step 5: Solve for x
    x = 1,521,565,281,889,347,072/1,409,026,861.64
  6. Step 6: Final answer
    x = 1,079,869,605.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.