Home / 13,173,023.23-18,178,482.45-7,212,417.91

Finding the Fourth Proportional to 13,173,023.23, 18,178,482.45 and 7,212,417.91

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Solution

The fourth proportional to 13,173,023.23, 18,178,482.45 and 7,212,417.91 is: 9,952,978.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,173,023.23 : 18,178,482.45 = 7,212,417.91 : x
  2. Step 2: Convert to fraction form
    13,173,023.23/18,178,482.45 = 7,212,417.91/x
  3. Step 3: Cross multiply
    13,173,023.23x = 18,178,482.45 × 7,212,417.91
  4. Step 4: Simplify right side
    13,173,023.23x = 131,110,812,399,000.67
  5. Step 5: Solve for x
    x = 131,110,812,399,000.67/13,173,023.23
  6. Step 6: Final answer
    x = 9,952,978.15

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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.