Home / 523,664,543.86-785,688,350.73-243,678,991.31

Finding the Fourth Proportional to 523,664,543.86, 785,688,350.73 and 243,678,991.31

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Solution

The fourth proportional to 523,664,543.86, 785,688,350.73 and 243,678,991.31 is: 365,607,614.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,664,543.86 : 785,688,350.73 = 243,678,991.31 : x
  2. Step 2: Convert to fraction form
    523,664,543.86/785,688,350.73 = 243,678,991.31/x
  3. Step 3: Cross multiply
    523,664,543.86x = 785,688,350.73 × 243,678,991.31
  4. Step 4: Simplify right side
    523,664,543.86x = 191,455,744,789,903,904
  5. Step 5: Solve for x
    x = 191,455,744,789,903,904/523,664,543.86
  6. Step 6: Final answer
    x = 365,607,614.71

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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.