Home / 531,539,783.40-797,309,675.10-420,574,902.60

Finding the Fourth Proportional to 531,539,783.40, 797,309,675.10 and 420,574,902.60

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Solution

The fourth proportional to 531,539,783.40, 797,309,675.10 and 420,574,902.60 is: 630,862,353.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,539,783.40 : 797,309,675.10 = 420,574,902.60 : x
  2. Step 2: Convert to fraction form
    531,539,783.40/797,309,675.10 = 420,574,902.60/x
  3. Step 3: Cross multiply
    531,539,783.40x = 797,309,675.10 × 420,574,902.60
  4. Step 4: Simplify right side
    531,539,783.40x = 335,328,438,947,220,160
  5. Step 5: Solve for x
    x = 335,328,438,947,220,160/531,539,783.40
  6. Step 6: Final answer
    x = 630,862,353.90

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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.