Home / 139,655,543.60-209,483,315.40-124,320,149.26

Finding the Fourth Proportional to 139,655,543.60, 209,483,315.40 and 124,320,149.26

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Solution

The fourth proportional to 139,655,543.60, 209,483,315.40 and 124,320,149.26 is: 186,480,223.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,655,543.60 : 209,483,315.40 = 124,320,149.26 : x
  2. Step 2: Convert to fraction form
    139,655,543.60/209,483,315.40 = 124,320,149.26/x
  3. Step 3: Cross multiply
    139,655,543.60x = 209,483,315.40 × 124,320,149.26
  4. Step 4: Simplify right side
    139,655,543.60x = 26,042,997,038,007,660
  5. Step 5: Solve for x
    x = 26,042,997,038,007,660/139,655,543.60
  6. Step 6: Final answer
    x = 186,480,223.89

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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.