Home / 130,400,999.70-195,601,499.55-69,934,823.70

Finding the Fourth Proportional to 130,400,999.70, 195,601,499.55 and 69,934,823.70

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Solution

The fourth proportional to 130,400,999.70, 195,601,499.55 and 69,934,823.70 is: 104,902,235.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,400,999.70 : 195,601,499.55 = 69,934,823.70 : x
  2. Step 2: Convert to fraction form
    130,400,999.70/195,601,499.55 = 69,934,823.70/x
  3. Step 3: Cross multiply
    130,400,999.70x = 195,601,499.55 × 69,934,823.70
  4. Step 4: Simplify right side
    130,400,999.70x = 13,679,356,386,484,880
  5. Step 5: Solve for x
    x = 13,679,356,386,484,880/130,400,999.70
  6. Step 6: Final answer
    x = 104,902,235.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.