Home / 77,038,816,168.32-105,936,568,365.15-66,859,872,279.18

Finding the Fourth Proportional to 77,038,816,168.32, 105,936,568,365.15 and 66,859,872,279.18

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Solution

The fourth proportional to 77,038,816,168.32, 105,936,568,365.15 and 66,859,872,279.18 is: 91,939,437,583.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,038,816,168.32 : 105,936,568,365.15 = 66,859,872,279.18 : x
  2. Step 2: Convert to fraction form
    77,038,816,168.32/105,936,568,365.15 = 66,859,872,279.18/x
  3. Step 3: Cross multiply
    77,038,816,168.32x = 105,936,568,365.15 × 66,859,872,279.18
  4. Step 4: Simplify right side
    77,038,816,168.32x = 7,082,905,430,588,548,710,400
  5. Step 5: Solve for x
    x = 7,082,905,430,588,548,710,400/77,038,816,168.32
  6. Step 6: Final answer
    x = 91,939,437,583.17

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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.