Home / 19,315,640,467.20-28,973,460,700.80-18,580,976,428.80

Finding the Fourth Proportional to 19,315,640,467.20, 28,973,460,700.80 and 18,580,976,428.80

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Solution

The fourth proportional to 19,315,640,467.20, 28,973,460,700.80 and 18,580,976,428.80 is: 27,871,464,643.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,315,640,467.20 : 28,973,460,700.80 = 18,580,976,428.80 : x
  2. Step 2: Convert to fraction form
    19,315,640,467.20/28,973,460,700.80 = 18,580,976,428.80/x
  3. Step 3: Cross multiply
    19,315,640,467.20x = 28,973,460,700.80 × 18,580,976,428.80
  4. Step 4: Simplify right side
    19,315,640,467.20x = 538,355,190,342,327,861,248
  5. Step 5: Solve for x
    x = 538,355,190,342,327,861,248/19,315,640,467.20
  6. Step 6: Final answer
    x = 27,871,464,643.20

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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.