Home / 1,188,789,721.08-1,640,549,573.16-652,990,928.46

Finding the Fourth Proportional to 1,188,789,721.08, 1,640,549,573.16 and 652,990,928.46

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Solution

The fourth proportional to 1,188,789,721.08, 1,640,549,573.16 and 652,990,928.46 is: 901,138,334.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,789,721.08 : 1,640,549,573.16 = 652,990,928.46 : x
  2. Step 2: Convert to fraction form
    1,188,789,721.08/1,640,549,573.16 = 652,990,928.46/x
  3. Step 3: Cross multiply
    1,188,789,721.08x = 1,640,549,573.16 × 652,990,928.46
  4. Step 4: Simplify right side
    1,188,789,721.08x = 1,071,263,988,962,405,248
  5. Step 5: Solve for x
    x = 1,071,263,988,962,405,248/1,188,789,721.08
  6. Step 6: Final answer
    x = 901,138,334.20

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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.