Home / 9,142,389.30-12,616,014.47-5,221,369.65

Finding the Fourth Proportional to 9,142,389.30, 12,616,014.47 and 5,221,369.65

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Solution

The fourth proportional to 9,142,389.30, 12,616,014.47 and 5,221,369.65 is: 7,205,214.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,142,389.30 : 12,616,014.47 = 5,221,369.65 : x
  2. Step 2: Convert to fraction form
    9,142,389.30/12,616,014.47 = 5,221,369.65/x
  3. Step 3: Cross multiply
    9,142,389.30x = 12,616,014.47 × 5,221,369.65
  4. Step 4: Simplify right side
    9,142,389.30x = 65,872,875,078,822.04
  5. Step 5: Solve for x
    x = 65,872,875,078,822.04/9,142,389.30
  6. Step 6: Final answer
    x = 7,205,214.40

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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.