Home / 31,152,021.60-46,728,032.40-20,402,479.20

Finding the Fourth Proportional to 31,152,021.60, 46,728,032.40 and 20,402,479.20

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Solution

The fourth proportional to 31,152,021.60, 46,728,032.40 and 20,402,479.20 is: 30,603,718.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,152,021.60 : 46,728,032.40 = 20,402,479.20 : x
  2. Step 2: Convert to fraction form
    31,152,021.60/46,728,032.40 = 20,402,479.20/x
  3. Step 3: Cross multiply
    31,152,021.60x = 46,728,032.40 × 20,402,479.20
  4. Step 4: Simplify right side
    31,152,021.60x = 953,367,709,097,926
  5. Step 5: Solve for x
    x = 953,367,709,097,926/31,152,021.60
  6. Step 6: Final answer
    x = 30,603,718.80

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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.