Home / 15,574,265,648.75-21,492,206,435.28-8,799,938,781.39

Finding the Fourth Proportional to 15,574,265,648.75, 21,492,206,435.28 and 8,799,938,781.39

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Solution

The fourth proportional to 15,574,265,648.75, 21,492,206,435.28 and 8,799,938,781.39 is: 12,143,757,219.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,574,265,648.75 : 21,492,206,435.28 = 8,799,938,781.39 : x
  2. Step 2: Convert to fraction form
    15,574,265,648.75/21,492,206,435.28 = 8,799,938,781.39/x
  3. Step 3: Cross multiply
    15,574,265,648.75x = 21,492,206,435.28 × 8,799,938,781.39
  4. Step 4: Simplify right side
    15,574,265,648.75x = 189,130,100,907,460,165,632
  5. Step 5: Solve for x
    x = 189,130,100,907,460,165,632/15,574,265,648.75
  6. Step 6: Final answer
    x = 12,143,757,219.31

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1.5x scale

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.