Home / 13,409,313.66-18,506,802.78-7,529,607.90

Finding the Fourth Proportional to 13,409,313.66, 18,506,802.78 and 7,529,607.90

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Solution

The fourth proportional to 13,409,313.66, 18,506,802.78 and 7,529,607.90 is: 10,391,953.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,409,313.66 : 18,506,802.78 = 7,529,607.90 : x
  2. Step 2: Convert to fraction form
    13,409,313.66/18,506,802.78 = 7,529,607.90/x
  3. Step 3: Cross multiply
    13,409,313.66x = 18,506,802.78 × 7,529,607.90
  4. Step 4: Simplify right side
    13,409,313.66x = 139,348,968,416,029.98
  5. Step 5: Solve for x
    x = 139,348,968,416,029.98/13,409,313.66
  6. Step 6: Final answer
    x = 10,391,953.83

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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.