Home / 13,637,925.89-18,820,776.87-7,757,409.35

Finding the Fourth Proportional to 13,637,925.89, 18,820,776.87 and 7,757,409.35

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Solution

The fourth proportional to 13,637,925.89, 18,820,776.87 and 7,757,409.35 is: 10,705,474.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,637,925.89 : 18,820,776.87 = 7,757,409.35 : x
  2. Step 2: Convert to fraction form
    13,637,925.89/18,820,776.87 = 7,757,409.35/x
  3. Step 3: Cross multiply
    13,637,925.89x = 18,820,776.87 × 7,757,409.35
  4. Step 4: Simplify right side
    13,637,925.89x = 146,000,470,371,497.84
  5. Step 5: Solve for x
    x = 146,000,470,371,497.84/13,637,925.89
  6. Step 6: Final answer
    x = 10,705,474.69

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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.