Home / 1,310,496,945.74-1,966,021,495.89-425,113,172.32

Finding the Fourth Proportional to 1,310,496,945.74, 1,966,021,495.89 and 425,113,172.32

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Solution

The fourth proportional to 1,310,496,945.74, 1,966,021,495.89 and 425,113,172.32 is: 637,759,315.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,310,496,945.74 : 1,966,021,495.89 = 425,113,172.32 : x
  2. Step 2: Convert to fraction form
    1,310,496,945.74/1,966,021,495.89 = 425,113,172.32/x
  3. Step 3: Cross multiply
    1,310,496,945.74x = 1,966,021,495.89 × 425,113,172.32
  4. Step 4: Simplify right side
    1,310,496,945.74x = 835,781,634,957,279,616
  5. Step 5: Solve for x
    x = 835,781,634,957,279,616/1,310,496,945.74
  6. Step 6: Final answer
    x = 637,759,315.41

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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.