Home / 254,455,526.40-381,683,289.60-90,877,986.60

Finding the Fourth Proportional to 254,455,526.40, 381,683,289.60 and 90,877,986.60

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Solution

The fourth proportional to 254,455,526.40, 381,683,289.60 and 90,877,986.60 is: 136,316,979.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,455,526.40 : 381,683,289.60 = 90,877,986.60 : x
  2. Step 2: Convert to fraction form
    254,455,526.40/381,683,289.60 = 90,877,986.60/x
  3. Step 3: Cross multiply
    254,455,526.40x = 381,683,289.60 × 90,877,986.60
  4. Step 4: Simplify right side
    254,455,526.40x = 34,686,608,877,712,720
  5. Step 5: Solve for x
    x = 34,686,608,877,712,720/254,455,526.40
  6. Step 6: Final answer
    x = 136,316,979.90

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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.