Home / 256,248,890.90-384,336,011.55-74,477,114.90

Finding the Fourth Proportional to 256,248,890.90, 384,336,011.55 and 74,477,114.90

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Solution

The fourth proportional to 256,248,890.90, 384,336,011.55 and 74,477,114.90 is: 111,704,824.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,248,890.90 : 384,336,011.55 = 74,477,114.90 : x
  2. Step 2: Convert to fraction form
    256,248,890.90/384,336,011.55 = 74,477,114.90/x
  3. Step 3: Cross multiply
    256,248,890.90x = 384,336,011.55 × 74,477,114.90
  4. Step 4: Simplify right side
    256,248,890.90x = 28,624,237,292,417,080
  5. Step 5: Solve for x
    x = 28,624,237,292,417,080/256,248,890.90
  6. Step 6: Final answer
    x = 111,704,824.13

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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.