Home / 815,953,187.88-1,126,197,141.12-518,537,437.32

Finding the Fourth Proportional to 815,953,187.88, 1,126,197,141.12 and 518,537,437.32

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Solution

The fourth proportional to 815,953,187.88, 1,126,197,141.12 and 518,537,437.32 is: 715,697,160.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,953,187.88 : 1,126,197,141.12 = 518,537,437.32 : x
  2. Step 2: Convert to fraction form
    815,953,187.88/1,126,197,141.12 = 518,537,437.32/x
  3. Step 3: Cross multiply
    815,953,187.88x = 1,126,197,141.12 × 518,537,437.32
  4. Step 4: Simplify right side
    815,953,187.88x = 583,975,379,473,475,072
  5. Step 5: Solve for x
    x = 583,975,379,473,475,072/815,953,187.88
  6. Step 6: Final answer
    x = 715,697,160.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.