Home / 1,287,749,737.80-1,931,729,582.70-550,825,216.20

Finding the Fourth Proportional to 1,287,749,737.80, 1,931,729,582.70 and 550,825,216.20

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Solution

The fourth proportional to 1,287,749,737.80, 1,931,729,582.70 and 550,825,216.20 is: 826,282,726.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,749,737.80 : 1,931,729,582.70 = 550,825,216.20 : x
  2. Step 2: Convert to fraction form
    1,287,749,737.80/1,931,729,582.70 = 550,825,216.20/x
  3. Step 3: Cross multiply
    1,287,749,737.80x = 1,931,729,582.70 × 550,825,216.20
  4. Step 4: Simplify right side
    1,287,749,737.80x = 1,064,045,365,030,663,424
  5. Step 5: Solve for x
    x = 1,064,045,365,030,663,424/1,287,749,737.80
  6. Step 6: Final answer
    x = 826,282,726.99

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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.