Home / 256,020,350.08-383,875,012.89-100,387,698.69

Finding the Fourth Proportional to 256,020,350.08, 383,875,012.89 and 100,387,698.69

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Solution

The fourth proportional to 256,020,350.08, 383,875,012.89 and 100,387,698.69 is: 150,520,570.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,020,350.08 : 383,875,012.89 = 100,387,698.69 : x
  2. Step 2: Convert to fraction form
    256,020,350.08/383,875,012.89 = 100,387,698.69/x
  3. Step 3: Cross multiply
    256,020,350.08x = 383,875,012.89 × 100,387,698.69
  4. Step 4: Simplify right side
    256,020,350.08x = 38,536,329,128,466,024
  5. Step 5: Solve for x
    x = 38,536,329,128,466,024/256,020,350.08
  6. Step 6: Final answer
    x = 150,520,570.40

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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.