Home / 21,141,785-31,712,677.50-5,185,433

Finding the Fourth Proportional to 21,141,785, 31,712,677.50 and 5,185,433

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Solution

The fourth proportional to 21,141,785, 31,712,677.50 and 5,185,433 is: 7,778,149.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,141,785 : 31,712,677.50 = 5,185,433 : x
  2. Step 2: Convert to fraction form
    21,141,785/31,712,677.50 = 5,185,433/x
  3. Step 3: Cross multiply
    21,141,785x = 31,712,677.50 × 5,185,433
  4. Step 4: Simplify right side
    21,141,785x = 164,443,964,426,857.50
  5. Step 5: Solve for x
    x = 164,443,964,426,857.50/21,141,785
  6. Step 6: Final answer
    x = 7,778,149.50

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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.