Home / 190,728,298.80-286,092,448.20-47,121,130.80

Finding the Fourth Proportional to 190,728,298.80, 286,092,448.20 and 47,121,130.80

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Solution

The fourth proportional to 190,728,298.80, 286,092,448.20 and 47,121,130.80 is: 70,681,696.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,728,298.80 : 286,092,448.20 = 47,121,130.80 : x
  2. Step 2: Convert to fraction form
    190,728,298.80/286,092,448.20 = 47,121,130.80/x
  3. Step 3: Cross multiply
    190,728,298.80x = 286,092,448.20 × 47,121,130.80
  4. Step 4: Simplify right side
    190,728,298.80x = 13,480,999,672,524,424
  5. Step 5: Solve for x
    x = 13,480,999,672,524,424/190,728,298.80
  6. Step 6: Final answer
    x = 70,681,696.20

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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.