Home / 18,968,420.08-28,452,703.43-4,591,464.40

Finding the Fourth Proportional to 18,968,420.08, 28,452,703.43 and 4,591,464.40

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Solution

The fourth proportional to 18,968,420.08, 28,452,703.43 and 4,591,464.40 is: 6,887,214.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,968,420.08 : 28,452,703.43 = 4,591,464.40 : x
  2. Step 2: Convert to fraction form
    18,968,420.08/28,452,703.43 = 4,591,464.40/x
  3. Step 3: Cross multiply
    18,968,420.08x = 28,452,703.43 × 4,591,464.40
  4. Step 4: Simplify right side
    18,968,420.08x = 130,639,574,882,602.91
  5. Step 5: Solve for x
    x = 130,639,574,882,602.91/18,968,420.08
  6. Step 6: Final answer
    x = 6,887,214.35

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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.