Home / 56,771,519.13-78,344,730.71-30,666,048.49

Finding the Fourth Proportional to 56,771,519.13, 78,344,730.71 and 30,666,048.49

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Solution

The fourth proportional to 56,771,519.13, 78,344,730.71 and 30,666,048.49 is: 42,319,165.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,771,519.13 : 78,344,730.71 = 30,666,048.49 : x
  2. Step 2: Convert to fraction form
    56,771,519.13/78,344,730.71 = 30,666,048.49/x
  3. Step 3: Cross multiply
    56,771,519.13x = 78,344,730.71 × 30,666,048.49
  4. Step 4: Simplify right side
    56,771,519.13x = 2,402,523,310,769,655.50
  5. Step 5: Solve for x
    x = 2,402,523,310,769,655.50/56,771,519.13
  6. Step 6: Final answer
    x = 42,319,165.45

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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.