Home / 1,920,192,347.70-2,880,288,521.55-1,889,581,346.10

Finding the Fourth Proportional to 1,920,192,347.70, 2,880,288,521.55 and 1,889,581,346.10

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Solution

The fourth proportional to 1,920,192,347.70, 2,880,288,521.55 and 1,889,581,346.10 is: 2,834,372,019.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,920,192,347.70 : 2,880,288,521.55 = 1,889,581,346.10 : x
  2. Step 2: Convert to fraction form
    1,920,192,347.70/2,880,288,521.55 = 1,889,581,346.10/x
  3. Step 3: Cross multiply
    1,920,192,347.70x = 2,880,288,521.55 × 1,889,581,346.10
  4. Step 4: Simplify right side
    1,920,192,347.70x = 5,442,539,461,706,827,776
  5. Step 5: Solve for x
    x = 5,442,539,461,706,827,776/1,920,192,347.70
  6. Step 6: Final answer
    x = 2,834,372,019.15

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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.