Home / 1,379,946,761.20-2,069,920,141.80-1,361,806,908.40

Finding the Fourth Proportional to 1,379,946,761.20, 2,069,920,141.80 and 1,361,806,908.40

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Solution

The fourth proportional to 1,379,946,761.20, 2,069,920,141.80 and 1,361,806,908.40 is: 2,042,710,362.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379,946,761.20 : 2,069,920,141.80 = 1,361,806,908.40 : x
  2. Step 2: Convert to fraction form
    1,379,946,761.20/2,069,920,141.80 = 1,361,806,908.40/x
  3. Step 3: Cross multiply
    1,379,946,761.20x = 2,069,920,141.80 × 1,361,806,908.40
  4. Step 4: Simplify right side
    1,379,946,761.20x = 2,818,831,548,939,547,648
  5. Step 5: Solve for x
    x = 2,818,831,548,939,547,648/1,379,946,761.20
  6. Step 6: Final answer
    x = 2,042,710,362.60

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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.