Home / 288,030,253.60-397,482,961.31-155,871,256.33

Finding the Fourth Proportional to 288,030,253.60, 397,482,961.31 and 155,871,256.33

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Solution

The fourth proportional to 288,030,253.60, 397,482,961.31 and 155,871,256.33 is: 215,102,989.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,030,253.60 : 397,482,961.31 = 155,871,256.33 : x
  2. Step 2: Convert to fraction form
    288,030,253.60/397,482,961.31 = 155,871,256.33/x
  3. Step 3: Cross multiply
    288,030,253.60x = 397,482,961.31 × 155,871,256.33
  4. Step 4: Simplify right side
    288,030,253.60x = 61,956,168,549,158,488
  5. Step 5: Solve for x
    x = 61,956,168,549,158,488/288,030,253.60
  6. Step 6: Final answer
    x = 215,102,989.27

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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.