Home / 261,001,111.07-360,190,878.77-143,535,525.86

Finding the Fourth Proportional to 261,001,111.07, 360,190,878.77 and 143,535,525.86

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Solution

The fourth proportional to 261,001,111.07, 360,190,878.77 and 143,535,525.86 is: 198,084,165.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,001,111.07 : 360,190,878.77 = 143,535,525.86 : x
  2. Step 2: Convert to fraction form
    261,001,111.07/360,190,878.77 = 143,535,525.86/x
  3. Step 3: Cross multiply
    261,001,111.07x = 360,190,878.77 × 143,535,525.86
  4. Step 4: Simplify right side
    261,001,111.07x = 51,700,187,193,509,784
  5. Step 5: Solve for x
    x = 51,700,187,193,509,784/261,001,111.07
  6. Step 6: Final answer
    x = 198,084,165.17

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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.