Home / 103,411,020.40-142,706,353.17-56,367,238.57

Finding the Fourth Proportional to 103,411,020.40, 142,706,353.17 and 56,367,238.57

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Solution

The fourth proportional to 103,411,020.40, 142,706,353.17 and 56,367,238.57 is: 77,786,323.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,411,020.40 : 142,706,353.17 = 56,367,238.57 : x
  2. Step 2: Convert to fraction form
    103,411,020.40/142,706,353.17 = 56,367,238.57/x
  3. Step 3: Cross multiply
    103,411,020.40x = 142,706,353.17 × 56,367,238.57
  4. Step 4: Simplify right side
    103,411,020.40x = 8,043,963,054,588,065
  5. Step 5: Solve for x
    x = 8,043,963,054,588,065/103,411,020.40
  6. Step 6: Final answer
    x = 77,786,323.19

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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.