Home / 288,030,254.60-397,482,962.68-155,871,257.34

Finding the Fourth Proportional to 288,030,254.60, 397,482,962.68 and 155,871,257.34

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Solution

The fourth proportional to 288,030,254.60, 397,482,962.68 and 155,871,257.34 is: 215,102,990.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,030,254.60 : 397,482,962.68 = 155,871,257.34 : x
  2. Step 2: Convert to fraction form
    288,030,254.60/397,482,962.68 = 155,871,257.34/x
  3. Step 3: Cross multiply
    288,030,254.60x = 397,482,962.68 × 155,871,257.34
  4. Step 4: Simplify right side
    288,030,254.60x = 61,956,169,164,159,896
  5. Step 5: Solve for x
    x = 61,956,169,164,159,896/288,030,254.60
  6. Step 6: Final answer
    x = 215,102,990.66

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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.