Home / 112,289,855.68-155,173,074-81,030,496.08

Finding the Fourth Proportional to 112,289,855.68, 155,173,074 and 81,030,496.08

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Solution

The fourth proportional to 112,289,855.68, 155,173,074 and 81,030,496.08 is: 111,975,842.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,289,855.68 : 155,173,074 = 81,030,496.08 : x
  2. Step 2: Convert to fraction form
    112,289,855.68/155,173,074 = 81,030,496.08/x
  3. Step 3: Cross multiply
    112,289,855.68x = 155,173,074 × 81,030,496.08
  4. Step 4: Simplify right side
    112,289,855.68x = 12,573,751,164,478,550
  5. Step 5: Solve for x
    x = 12,573,751,164,478,550/112,289,855.68
  6. Step 6: Final answer
    x = 111,975,842.24

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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.