Home / 256,248,892.40-384,336,013.80-74,477,116.40

Finding the Fourth Proportional to 256,248,892.40, 384,336,013.80 and 74,477,116.40

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Solution

The fourth proportional to 256,248,892.40, 384,336,013.80 and 74,477,116.40 is: 111,704,826.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,248,892.40 : 384,336,013.80 = 74,477,116.40 : x
  2. Step 2: Convert to fraction form
    256,248,892.40/384,336,013.80 = 74,477,116.40/x
  3. Step 3: Cross multiply
    256,248,892.40x = 384,336,013.80 × 74,477,116.40
  4. Step 4: Simplify right side
    256,248,892.40x = 28,624,238,036,494,608
  5. Step 5: Solve for x
    x = 28,624,238,036,494,608/256,248,892.40
  6. Step 6: Final answer
    x = 111,704,826.38

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1.5x scale

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.