Home / 30,190,153.48-45,285,623.78-8,625,458.68

Finding the Fourth Proportional to 30,190,153.48, 45,285,623.78 and 8,625,458.68

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Solution

The fourth proportional to 30,190,153.48, 45,285,623.78 and 8,625,458.68 is: 12,938,300.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,190,153.48 : 45,285,623.78 = 8,625,458.68 : x
  2. Step 2: Convert to fraction form
    30,190,153.48/45,285,623.78 = 8,625,458.68/x
  3. Step 3: Cross multiply
    30,190,153.48x = 45,285,623.78 × 8,625,458.68
  4. Step 4: Simplify right side
    30,190,153.48x = 390,609,276,556,074.06
  5. Step 5: Solve for x
    x = 390,609,276,556,074.06/30,190,153.48
  6. Step 6: Final answer
    x = 12,938,300.46

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1.5x scale

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.