Home / 387,084,923.40-579,831,122.70-195,716,526.60

Finding the Fourth Proportional to 387,084,923.40, 579,831,122.70 and 195,716,526.60

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Solution

The fourth proportional to 387,084,923.40, 579,831,122.70 and 195,716,526.60 is: 293,172,186.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,084,923.40 : 579,831,122.70 = 195,716,526.60 : x
  2. Step 2: Convert to fraction form
    387,084,923.40/579,831,122.70 = 195,716,526.60/x
  3. Step 3: Cross multiply
    387,084,923.40x = 579,831,122.70 × 195,716,526.60
  4. Step 4: Simplify right side
    387,084,923.40x = 113,482,533,349,422,416
  5. Step 5: Solve for x
    x = 113,482,533,349,422,416/387,084,923.40
  6. Step 6: Final answer
    x = 293,172,186.49

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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.