Home / 142,424,649.05-213,634,639.01-45,379,038.29

Finding the Fourth Proportional to 142,424,649.05, 213,634,639.01 and 45,379,038.29

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Solution

The fourth proportional to 142,424,649.05, 213,634,639.01 and 45,379,038.29 is: 68,067,813.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,424,649.05 : 213,634,639.01 = 45,379,038.29 : x
  2. Step 2: Convert to fraction form
    142,424,649.05/213,634,639.01 = 45,379,038.29/x
  3. Step 3: Cross multiply
    142,424,649.05x = 213,634,639.01 × 45,379,038.29
  4. Step 4: Simplify right side
    142,424,649.05x = 9,694,534,462,750,390
  5. Step 5: Solve for x
    x = 9,694,534,462,750,390/142,424,649.05
  6. Step 6: Final answer
    x = 68,067,813.60

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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.