Home / 21,167,132,430.57-31,750,698,634.92-7,903,426,538.31

Finding the Fourth Proportional to 21,167,132,430.57, 31,750,698,634.92 and 7,903,426,538.31

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Solution

The fourth proportional to 21,167,132,430.57, 31,750,698,634.92 and 7,903,426,538.31 is: 11,855,139,803.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,167,132,430.57 : 31,750,698,634.92 = 7,903,426,538.31 : x
  2. Step 2: Convert to fraction form
    21,167,132,430.57/31,750,698,634.92 = 7,903,426,538.31/x
  3. Step 3: Cross multiply
    21,167,132,430.57x = 31,750,698,634.92 × 7,903,426,538.31
  4. Step 4: Simplify right side
    21,167,132,430.57x = 250,939,314,201,109,823,488
  5. Step 5: Solve for x
    x = 250,939,314,201,109,823,488/21,167,132,430.57
  6. Step 6: Final answer
    x = 11,855,139,803.38

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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.