Home / 137,898,085.24-190,300,641.24-76,020,638.12

Finding the Fourth Proportional to 137,898,085.24, 190,300,641.24 and 76,020,638.12

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Solution

The fourth proportional to 137,898,085.24, 190,300,641.24 and 76,020,638.12 is: 104,909,188.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,898,085.24 : 190,300,641.24 = 76,020,638.12 : x
  2. Step 2: Convert to fraction form
    137,898,085.24/190,300,641.24 = 76,020,638.12/x
  3. Step 3: Cross multiply
    137,898,085.24x = 190,300,641.24 × 76,020,638.12
  4. Step 4: Simplify right side
    137,898,085.24x = 14,466,776,181,709,990
  5. Step 5: Solve for x
    x = 14,466,776,181,709,990/137,898,085.24
  6. Step 6: Final answer
    x = 104,909,188.24

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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.