Home / 20,695,598.40-31,043,397.60-7,909,521.60

Finding the Fourth Proportional to 20,695,598.40, 31,043,397.60 and 7,909,521.60

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Solution

The fourth proportional to 20,695,598.40, 31,043,397.60 and 7,909,521.60 is: 11,864,282.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,695,598.40 : 31,043,397.60 = 7,909,521.60 : x
  2. Step 2: Convert to fraction form
    20,695,598.40/31,043,397.60 = 7,909,521.60/x
  3. Step 3: Cross multiply
    20,695,598.40x = 31,043,397.60 × 7,909,521.60
  4. Step 4: Simplify right side
    20,695,598.40x = 245,538,423,854,588.16
  5. Step 5: Solve for x
    x = 245,538,423,854,588.16/20,695,598.40
  6. Step 6: Final answer
    x = 11,864,282.40

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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.