Home / 163,618,358.40-225,798,023.52-90,284,224.32

Finding the Fourth Proportional to 163,618,358.40, 225,798,023.52 and 90,284,224.32

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Solution

The fourth proportional to 163,618,358.40, 225,798,023.52 and 90,284,224.32 is: 124,594,816.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,618,358.40 : 225,798,023.52 = 90,284,224.32 : x
  2. Step 2: Convert to fraction form
    163,618,358.40/225,798,023.52 = 90,284,224.32/x
  3. Step 3: Cross multiply
    163,618,358.40x = 225,798,023.52 × 90,284,224.32
  4. Step 4: Simplify right side
    163,618,358.40x = 20,385,999,406,492,316
  5. Step 5: Solve for x
    x = 20,385,999,406,492,316/163,618,358.40
  6. Step 6: Final answer
    x = 124,594,816.90

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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.