Home / 771,846,763.59-1,065,147,723.44-419,421,915.93

Finding the Fourth Proportional to 771,846,763.59, 1,065,147,723.44 and 419,421,915.93

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Solution

The fourth proportional to 771,846,763.59, 1,065,147,723.44 and 419,421,915.93 is: 578,801,803.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,846,763.59 : 1,065,147,723.44 = 419,421,915.93 : x
  2. Step 2: Convert to fraction form
    771,846,763.59/1,065,147,723.44 = 419,421,915.93/x
  3. Step 3: Cross multiply
    771,846,763.59x = 1,065,147,723.44 × 419,421,915.93
  4. Step 4: Simplify right side
    771,846,763.59x = 446,746,298,911,585,472
  5. Step 5: Solve for x
    x = 446,746,298,911,585,472/771,846,763.59
  6. Step 6: Final answer
    x = 578,801,803.66

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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.