Home / 1,120,620,938.82-1,683,482,324.98-810,684,547.62

Finding the Fourth Proportional to 1,120,620,938.82, 1,683,482,324.98 and 810,684,547.62

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Solution

The fourth proportional to 1,120,620,938.82, 1,683,482,324.98 and 810,684,547.62 is: 1,217,872,216.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,620,938.82 : 1,683,482,324.98 = 810,684,547.62 : x
  2. Step 2: Convert to fraction form
    1,120,620,938.82/1,683,482,324.98 = 810,684,547.62/x
  3. Step 3: Cross multiply
    1,120,620,938.82x = 1,683,482,324.98 × 810,684,547.62
  4. Step 4: Simplify right side
    1,120,620,938.82x = 1,364,773,107,052,677,120
  5. Step 5: Solve for x
    x = 1,364,773,107,052,677,120/1,120,620,938.82
  6. Step 6: Final answer
    x = 1,217,872,216.89

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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.