Home / 105,187,261.90-145,155,636.93-58,777,897.18

Finding the Fourth Proportional to 105,187,261.90, 145,155,636.93 and 58,777,897.18

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Solution

The fourth proportional to 105,187,261.90, 145,155,636.93 and 58,777,897.18 is: 81,111,942.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,187,261.90 : 145,155,636.93 = 58,777,897.18 : x
  2. Step 2: Convert to fraction form
    105,187,261.90/145,155,636.93 = 58,777,897.18/x
  3. Step 3: Cross multiply
    105,187,261.90x = 145,155,636.93 × 58,777,897.18
  4. Step 4: Simplify right side
    105,187,261.90x = 8,531,943,102,715,896
  5. Step 5: Solve for x
    x = 8,531,943,102,715,896/105,187,261.90
  6. Step 6: Final answer
    x = 81,111,942.16

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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.