Home / 74,658,501.60-111,987,752.40-20,805,813.60

Finding the Fourth Proportional to 74,658,501.60, 111,987,752.40 and 20,805,813.60

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Solution

The fourth proportional to 74,658,501.60, 111,987,752.40 and 20,805,813.60 is: 31,208,720.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,658,501.60 : 111,987,752.40 = 20,805,813.60 : x
  2. Step 2: Convert to fraction form
    74,658,501.60/111,987,752.40 = 20,805,813.60/x
  3. Step 3: Cross multiply
    74,658,501.60x = 111,987,752.40 × 20,805,813.60
  4. Step 4: Simplify right side
    74,658,501.60x = 2,329,996,301,917,353
  5. Step 5: Solve for x
    x = 2,329,996,301,917,353/74,658,501.60
  6. Step 6: Final answer
    x = 31,208,720.40

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1.5x scale

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.