Home / 850,334,133.60-1,275,501,200.40-420,352,437.60

Finding the Fourth Proportional to 850,334,133.60, 1,275,501,200.40 and 420,352,437.60

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Solution

The fourth proportional to 850,334,133.60, 1,275,501,200.40 and 420,352,437.60 is: 630,528,656.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,334,133.60 : 1,275,501,200.40 = 420,352,437.60 : x
  2. Step 2: Convert to fraction form
    850,334,133.60/1,275,501,200.40 = 420,352,437.60/x
  3. Step 3: Cross multiply
    850,334,133.60x = 1,275,501,200.40 × 420,352,437.60
  4. Step 4: Simplify right side
    850,334,133.60x = 536,160,038,749,866,176
  5. Step 5: Solve for x
    x = 536,160,038,749,866,176/850,334,133.60
  6. Step 6: Final answer
    x = 630,528,656.40

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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.