Home / 42,667,759.81-64,001,670.86-10,319,693.50

Finding the Fourth Proportional to 42,667,759.81, 64,001,670.86 and 10,319,693.50

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Solution

The fourth proportional to 42,667,759.81, 64,001,670.86 and 10,319,693.50 is: 15,479,547.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,667,759.81 : 64,001,670.86 = 10,319,693.50 : x
  2. Step 2: Convert to fraction form
    42,667,759.81/64,001,670.86 = 10,319,693.50/x
  3. Step 3: Cross multiply
    42,667,759.81x = 64,001,670.86 × 10,319,693.50
  4. Step 4: Simplify right side
    42,667,759.81x = 660,477,626,763,081.38
  5. Step 5: Solve for x
    x = 660,477,626,763,081.38/42,667,759.81
  6. Step 6: Final answer
    x = 15,479,547.78

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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.