Home / 1,181,079,840.48-1,771,620,382.80-307,678,898.40

Finding the Fourth Proportional to 1,181,079,840.48, 1,771,620,382.80 and 307,678,898.40

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Solution

The fourth proportional to 1,181,079,840.48, 1,771,620,382.80 and 307,678,898.40 is: 461,518,509.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,181,079,840.48 : 1,771,620,382.80 = 307,678,898.40 : x
  2. Step 2: Convert to fraction form
    1,181,079,840.48/1,771,620,382.80 = 307,678,898.40/x
  3. Step 3: Cross multiply
    1,181,079,840.48x = 1,771,620,382.80 × 307,678,898.40
  4. Step 4: Simplify right side
    1,181,079,840.48x = 545,090,207,762,890,240
  5. Step 5: Solve for x
    x = 545,090,207,762,890,240/1,181,079,840.48
  6. Step 6: Final answer
    x = 461,518,509.66

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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.