Home / 72,549,193.86-100,117,198.67-39,509,994.38

Finding the Fourth Proportional to 72,549,193.86, 100,117,198.67 and 39,509,994.38

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Solution

The fourth proportional to 72,549,193.86, 100,117,198.67 and 39,509,994.38 is: 54,523,417.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,549,193.86 : 100,117,198.67 = 39,509,994.38 : x
  2. Step 2: Convert to fraction form
    72,549,193.86/100,117,198.67 = 39,509,994.38/x
  3. Step 3: Cross multiply
    72,549,193.86x = 100,117,198.67 × 39,509,994.38
  4. Step 4: Simplify right side
    72,549,193.86x = 3,955,629,956,094,908
  5. Step 5: Solve for x
    x = 3,955,629,956,094,908/72,549,193.86
  6. Step 6: Final answer
    x = 54,523,417.09

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1.5x scale

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.