Home / 406,077,379.47-609,139,688.81-114,920,144.91

Finding the Fourth Proportional to 406,077,379.47, 609,139,688.81 and 114,920,144.91

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Solution

The fourth proportional to 406,077,379.47, 609,139,688.81 and 114,920,144.91 is: 172,386,901.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,077,379.47 : 609,139,688.81 = 114,920,144.91 : x
  2. Step 2: Convert to fraction form
    406,077,379.47/609,139,688.81 = 114,920,144.91/x
  3. Step 3: Cross multiply
    406,077,379.47x = 609,139,688.81 × 114,920,144.91
  4. Step 4: Simplify right side
    406,077,379.47x = 70,002,421,307,902,896
  5. Step 5: Solve for x
    x = 70,002,421,307,902,896/406,077,379.47
  6. Step 6: Final answer
    x = 172,386,901.73

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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.