Home / 66,603,359.16-91,940,967.72-40,506,259.68

Finding the Fourth Proportional to 66,603,359.16, 91,940,967.72 and 40,506,259.68

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Solution

The fourth proportional to 66,603,359.16, 91,940,967.72 and 40,506,259.68 is: 55,915,869.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,603,359.16 : 91,940,967.72 = 40,506,259.68 : x
  2. Step 2: Convert to fraction form
    66,603,359.16/91,940,967.72 = 40,506,259.68/x
  3. Step 3: Cross multiply
    66,603,359.16x = 91,940,967.72 × 40,506,259.68
  4. Step 4: Simplify right side
    66,603,359.16x = 3,724,184,713,696,817.50
  5. Step 5: Solve for x
    x = 3,724,184,713,696,817.50/66,603,359.16
  6. Step 6: Final answer
    x = 55,915,869.12

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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.