Home / 638,005,089.20-957,007,633.80-153,330,897.20

Finding the Fourth Proportional to 638,005,089.20, 957,007,633.80 and 153,330,897.20

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Solution

The fourth proportional to 638,005,089.20, 957,007,633.80 and 153,330,897.20 is: 229,996,345.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,005,089.20 : 957,007,633.80 = 153,330,897.20 : x
  2. Step 2: Convert to fraction form
    638,005,089.20/957,007,633.80 = 153,330,897.20/x
  3. Step 3: Cross multiply
    638,005,089.20x = 957,007,633.80 × 153,330,897.20
  4. Step 4: Simplify right side
    638,005,089.20x = 146,738,839,117,803,040
  5. Step 5: Solve for x
    x = 146,738,839,117,803,040/638,005,089.20
  6. Step 6: Final answer
    x = 229,996,345.80

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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.