Home / 21,712,859.47-32,570,336.61-7,139,456.31

Finding the Fourth Proportional to 21,712,859.47, 32,570,336.61 and 7,139,456.31

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Solution

The fourth proportional to 21,712,859.47, 32,570,336.61 and 7,139,456.31 is: 10,709,528.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,712,859.47 : 32,570,336.61 = 7,139,456.31 : x
  2. Step 2: Convert to fraction form
    21,712,859.47/32,570,336.61 = 7,139,456.31/x
  3. Step 3: Cross multiply
    21,712,859.47x = 32,570,336.61 × 7,139,456.31
  4. Step 4: Simplify right side
    21,712,859.47x = 232,534,495,229,088.50
  5. Step 5: Solve for x
    x = 232,534,495,229,088.50/21,712,859.47
  6. Step 6: Final answer
    x = 10,709,528.87

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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.