Home / 72,341,152,918.08-99,830,873,791.14-40,225,825,544.13

Finding the Fourth Proportional to 72,341,152,918.08, 99,830,873,791.14 and 40,225,825,544.13

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Solution

The fourth proportional to 72,341,152,918.08, 99,830,873,791.14 and 40,225,825,544.13 is: 55,511,685,272.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,341,152,918.08 : 99,830,873,791.14 = 40,225,825,544.13 : x
  2. Step 2: Convert to fraction form
    72,341,152,918.08/99,830,873,791.14 = 40,225,825,544.13/x
  3. Step 3: Cross multiply
    72,341,152,918.08x = 99,830,873,791.14 × 40,225,825,544.13
  4. Step 4: Simplify right side
    72,341,152,918.08x = 4,015,779,313,040,457,465,856
  5. Step 5: Solve for x
    x = 4,015,779,313,040,457,465,856/72,341,152,918.08
  6. Step 6: Final answer
    x = 55,511,685,272.53

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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.