Home / 528,748,772.40-793,123,158.60-419,909,655.60

Finding the Fourth Proportional to 528,748,772.40, 793,123,158.60 and 419,909,655.60

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Solution

The fourth proportional to 528,748,772.40, 793,123,158.60 and 419,909,655.60 is: 629,864,483.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,748,772.40 : 793,123,158.60 = 419,909,655.60 : x
  2. Step 2: Convert to fraction form
    528,748,772.40/793,123,158.60 = 419,909,655.60/x
  3. Step 3: Cross multiply
    528,748,772.40x = 793,123,158.60 × 419,909,655.60
  4. Step 4: Simplify right side
    528,748,772.40x = 333,040,072,376,110,208
  5. Step 5: Solve for x
    x = 333,040,072,376,110,208/528,748,772.40
  6. Step 6: Final answer
    x = 629,864,483.40

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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.