Home / 72,721,111,231.96-100,424,442,937.98-68,759,310,667.48

Finding the Fourth Proportional to 72,721,111,231.96, 100,424,442,937.98 and 68,759,310,667.48

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Solution

The fourth proportional to 72,721,111,231.96, 100,424,442,937.98 and 68,759,310,667.48 is: 94,953,382,224.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,721,111,231.96 : 100,424,442,937.98 = 68,759,310,667.48 : x
  2. Step 2: Convert to fraction form
    72,721,111,231.96/100,424,442,937.98 = 68,759,310,667.48/x
  3. Step 3: Cross multiply
    72,721,111,231.96x = 100,424,442,937.98 × 68,759,310,667.48
  4. Step 4: Simplify right side
    72,721,111,231.96x = 6,905,115,470,581,184,069,632
  5. Step 5: Solve for x
    x = 6,905,115,470,581,184,069,632/72,721,111,231.96
  6. Step 6: Final answer
    x = 94,953,382,224.26

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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.