Home / 817,519,765.80-1,226,297,068.02-292,923,136.20

Finding the Fourth Proportional to 817,519,765.80, 1,226,297,068.02 and 292,923,136.20

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Solution

The fourth proportional to 817,519,765.80, 1,226,297,068.02 and 292,923,136.20 is: 439,390,945.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,519,765.80 : 1,226,297,068.02 = 292,923,136.20 : x
  2. Step 2: Convert to fraction form
    817,519,765.80/1,226,297,068.02 = 292,923,136.20/x
  3. Step 3: Cross multiply
    817,519,765.80x = 1,226,297,068.02 × 292,923,136.20
  4. Step 4: Simplify right side
    817,519,765.80x = 359,210,783,077,283,136
  5. Step 5: Solve for x
    x = 359,210,783,077,283,136/817,519,765.80
  6. Step 6: Final answer
    x = 439,390,945.77

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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.