Home / 528,048,179.80-792,036,840.30-139,862,678.20

Finding the Fourth Proportional to 528,048,179.80, 792,036,840.30 and 139,862,678.20

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Solution

The fourth proportional to 528,048,179.80, 792,036,840.30 and 139,862,678.20 is: 209,784,633.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,048,179.80 : 792,036,840.30 = 139,862,678.20 : x
  2. Step 2: Convert to fraction form
    528,048,179.80/792,036,840.30 = 139,862,678.20/x
  3. Step 3: Cross multiply
    528,048,179.80x = 792,036,840.30 × 139,862,678.20
  4. Step 4: Simplify right side
    528,048,179.80x = 110,776,393,717,423,680
  5. Step 5: Solve for x
    x = 110,776,393,717,423,680/528,048,179.80
  6. Step 6: Final answer
    x = 209,784,633.21

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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.