Home / 42,618,621.60-63,936,226.80-18,357,501.60

Finding the Fourth Proportional to 42,618,621.60, 63,936,226.80 and 18,357,501.60

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Solution

The fourth proportional to 42,618,621.60, 63,936,226.80 and 18,357,501.60 is: 27,539,825.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,618,621.60 : 63,936,226.80 = 18,357,501.60 : x
  2. Step 2: Convert to fraction form
    42,618,621.60/63,936,226.80 = 18,357,501.60/x
  3. Step 3: Cross multiply
    42,618,621.60x = 63,936,226.80 × 18,357,501.60
  4. Step 4: Simplify right side
    42,618,621.60x = 1,173,709,385,778,963
  5. Step 5: Solve for x
    x = 1,173,709,385,778,963/42,618,621.60
  6. Step 6: Final answer
    x = 27,539,825.12

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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.