Home / 21,326,276.40-32,064,064.20-20,878,378.80

Finding the Fourth Proportional to 21,326,276.40, 32,064,064.20 and 20,878,378.80

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Solution

The fourth proportional to 21,326,276.40, 32,064,064.20 and 20,878,378.80 is: 31,390,650.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,326,276.40 : 32,064,064.20 = 20,878,378.80 : x
  2. Step 2: Convert to fraction form
    21,326,276.40/32,064,064.20 = 20,878,378.80/x
  3. Step 3: Cross multiply
    21,326,276.40x = 32,064,064.20 × 20,878,378.80
  4. Step 4: Simplify right side
    21,326,276.40x = 669,445,678,235,119
  5. Step 5: Solve for x
    x = 669,445,678,235,119/21,326,276.40
  6. Step 6: Final answer
    x = 31,390,650.00

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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.