Home / 105,178,915.80-157,693,724.10-40,457,712.60

Finding the Fourth Proportional to 105,178,915.80, 157,693,724.10 and 40,457,712.60

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Solution

The fourth proportional to 105,178,915.80, 157,693,724.10 and 40,457,712.60 is: 60,657,854.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,178,915.80 : 157,693,724.10 = 40,457,712.60 : x
  2. Step 2: Convert to fraction form
    105,178,915.80/157,693,724.10 = 40,457,712.60/x
  3. Step 3: Cross multiply
    105,178,915.80x = 157,693,724.10 × 40,457,712.60
  4. Step 4: Simplify right side
    105,178,915.80x = 6,379,927,368,461,494
  5. Step 5: Solve for x
    x = 6,379,927,368,461,494/105,178,915.80
  6. Step 6: Final answer
    x = 60,657,854.48

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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.