Home / 12,390,455.98-17,097,826.85-7,163,799.47

Finding the Fourth Proportional to 12,390,455.98, 17,097,826.85 and 7,163,799.47

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Solution

The fourth proportional to 12,390,455.98, 17,097,826.85 and 7,163,799.47 is: 9,885,463.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,390,455.98 : 17,097,826.85 = 7,163,799.47 : x
  2. Step 2: Convert to fraction form
    12,390,455.98/17,097,826.85 = 7,163,799.47/x
  3. Step 3: Cross multiply
    12,390,455.98x = 17,097,826.85 × 7,163,799.47
  4. Step 4: Simplify right side
    12,390,455.98x = 122,485,402,858,602.12
  5. Step 5: Solve for x
    x = 122,485,402,858,602.12/12,390,455.98
  6. Step 6: Final answer
    x = 9,885,463.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.