Home / 1,242,071,355.32-1,862,909,590.55-412,956,035.72

Finding the Fourth Proportional to 1,242,071,355.32, 1,862,909,590.55 and 412,956,035.72

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Solution

The fourth proportional to 1,242,071,355.32, 1,862,909,590.55 and 412,956,035.72 is: 619,368,409.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,071,355.32 : 1,862,909,590.55 = 412,956,035.72 : x
  2. Step 2: Convert to fraction form
    1,242,071,355.32/1,862,909,590.55 = 412,956,035.72/x
  3. Step 3: Cross multiply
    1,242,071,355.32x = 1,862,909,590.55 × 412,956,035.72
  4. Step 4: Simplify right side
    1,242,071,355.32x = 769,299,759,410,014,208
  5. Step 5: Solve for x
    x = 769,299,759,410,014,208/1,242,071,355.32
  6. Step 6: Final answer
    x = 619,368,409.16

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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.