Home / 875,167,730.40-1,312,950,661.20-511,474,879.20

Finding the Fourth Proportional to 875,167,730.40, 1,312,950,661.20 and 511,474,879.20

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Solution

The fourth proportional to 875,167,730.40, 1,312,950,661.20 and 511,474,879.20 is: 767,328,658.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,167,730.40 : 1,312,950,661.20 = 511,474,879.20 : x
  2. Step 2: Convert to fraction form
    875,167,730.40/1,312,950,661.20 = 511,474,879.20/x
  3. Step 3: Cross multiply
    875,167,730.40x = 1,312,950,661.20 × 511,474,879.20
  4. Step 4: Simplify right side
    875,167,730.40x = 671,541,280,832,830,080
  5. Step 5: Solve for x
    x = 671,541,280,832,830,080/875,167,730.40
  6. Step 6: Final answer
    x = 767,328,658.85

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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.