Home / 105,178,906.80-157,693,710.60-40,457,703.60

Finding the Fourth Proportional to 105,178,906.80, 157,693,710.60 and 40,457,703.60

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Solution

The fourth proportional to 105,178,906.80, 157,693,710.60 and 40,457,703.60 is: 60,657,840.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,178,906.80 : 157,693,710.60 = 40,457,703.60 : x
  2. Step 2: Convert to fraction form
    105,178,906.80/157,693,710.60 = 40,457,703.60/x
  3. Step 3: Cross multiply
    105,178,906.80x = 157,693,710.60 × 40,457,703.60
  4. Step 4: Simplify right side
    105,178,906.80x = 6,379,925,403,038,978
  5. Step 5: Solve for x
    x = 6,379,925,403,038,978/105,178,906.80
  6. Step 6: Final answer
    x = 60,657,840.98

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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.