Home / 103,323,830-142,586,885.40-56,913,940.40

Finding the Fourth Proportional to 103,323,830, 142,586,885.40 and 56,913,940.40

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Solution

The fourth proportional to 103,323,830, 142,586,885.40 and 56,913,940.40 is: 78,541,237.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,323,830 : 142,586,885.40 = 56,913,940.40 : x
  2. Step 2: Convert to fraction form
    103,323,830/142,586,885.40 = 56,913,940.40/x
  3. Step 3: Cross multiply
    103,323,830x = 142,586,885.40 × 56,913,940.40
  4. Step 4: Simplify right side
    103,323,830x = 8,115,181,497,477,230
  5. Step 5: Solve for x
    x = 8,115,181,497,477,230/103,323,830
  6. Step 6: Final answer
    x = 78,541,237.75

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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.