Home / 531,539,762.40-797,309,643.60-420,574,881.60

Finding the Fourth Proportional to 531,539,762.40, 797,309,643.60 and 420,574,881.60

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Solution

The fourth proportional to 531,539,762.40, 797,309,643.60 and 420,574,881.60 is: 630,862,322.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,539,762.40 : 797,309,643.60 = 420,574,881.60 : x
  2. Step 2: Convert to fraction form
    531,539,762.40/797,309,643.60 = 420,574,881.60/x
  3. Step 3: Cross multiply
    531,539,762.40x = 797,309,643.60 × 420,574,881.60
  4. Step 4: Simplify right side
    531,539,762.40x = 335,328,408,955,608,256
  5. Step 5: Solve for x
    x = 335,328,408,955,608,256/531,539,762.40
  6. Step 6: Final answer
    x = 630,862,322.40

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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.