Home / 501,458,697.05-692,013,000-281,442,123.05

Finding the Fourth Proportional to 501,458,697.05, 692,013,000 and 281,442,123.05

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Solution

The fourth proportional to 501,458,697.05, 692,013,000 and 281,442,123.05 is: 388,390,128.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,458,697.05 : 692,013,000 = 281,442,123.05 : x
  2. Step 2: Convert to fraction form
    501,458,697.05/692,013,000 = 281,442,123.05/x
  3. Step 3: Cross multiply
    501,458,697.05x = 692,013,000 × 281,442,123.05
  4. Step 4: Simplify right side
    501,458,697.05x = 194,761,607,898,199,648
  5. Step 5: Solve for x
    x = 194,761,607,898,199,648/501,458,697.05
  6. Step 6: Final answer
    x = 388,390,128.73

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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.