Home / 985,630,542.60-1,478,349,731.70-258,619,254.60

Finding the Fourth Proportional to 985,630,542.60, 1,478,349,731.70 and 258,619,254.60

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Solution

The fourth proportional to 985,630,542.60, 1,478,349,731.70 and 258,619,254.60 is: 387,903,670.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,630,542.60 : 1,478,349,731.70 = 258,619,254.60 : x
  2. Step 2: Convert to fraction form
    985,630,542.60/1,478,349,731.70 = 258,619,254.60/x
  3. Step 3: Cross multiply
    985,630,542.60x = 1,478,349,731.70 × 258,619,254.60
  4. Step 4: Simplify right side
    985,630,542.60x = 382,329,705,650,363,968
  5. Step 5: Solve for x
    x = 382,329,705,650,363,968/985,630,542.60
  6. Step 6: Final answer
    x = 387,903,670.93

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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.