Home / 15,338,708.16-21,168,683.28-8,813,597.64

Finding the Fourth Proportional to 15,338,708.16, 21,168,683.28 and 8,813,597.64

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Solution

The fourth proportional to 15,338,708.16, 21,168,683.28 and 8,813,597.64 is: 12,163,492.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,338,708.16 : 21,168,683.28 = 8,813,597.64 : x
  2. Step 2: Convert to fraction form
    15,338,708.16/21,168,683.28 = 8,813,597.64/x
  3. Step 3: Cross multiply
    15,338,708.16x = 21,168,683.28 × 8,813,597.64
  4. Step 4: Simplify right side
    15,338,708.16x = 186,572,256,998,515.47
  5. Step 5: Solve for x
    x = 186,572,256,998,515.47/15,338,708.16
  6. Step 6: Final answer
    x = 12,163,492.20

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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.