Home / 124,686,904.32-172,064,701.44-69,683,212.80

Finding the Fourth Proportional to 124,686,904.32, 172,064,701.44 and 69,683,212.80

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Solution

The fourth proportional to 124,686,904.32, 172,064,701.44 and 69,683,212.80 is: 96,161,030.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,686,904.32 : 172,064,701.44 = 69,683,212.80 : x
  2. Step 2: Convert to fraction form
    124,686,904.32/172,064,701.44 = 69,683,212.80/x
  3. Step 3: Cross multiply
    124,686,904.32x = 172,064,701.44 × 69,683,212.80
  4. Step 4: Simplify right side
    124,686,904.32x = 11,990,021,205,811,986
  5. Step 5: Solve for x
    x = 11,990,021,205,811,986/124,686,904.32
  6. Step 6: Final answer
    x = 96,161,030.47

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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.