Home / 612,390,070.80-918,585,106.20-354,109,744.80

Finding the Fourth Proportional to 612,390,070.80, 918,585,106.20 and 354,109,744.80

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Solution

The fourth proportional to 612,390,070.80, 918,585,106.20 and 354,109,744.80 is: 531,164,617.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,390,070.80 : 918,585,106.20 = 354,109,744.80 : x
  2. Step 2: Convert to fraction form
    612,390,070.80/918,585,106.20 = 354,109,744.80/x
  3. Step 3: Cross multiply
    612,390,070.80x = 918,585,106.20 × 354,109,744.80
  4. Step 4: Simplify right side
    612,390,070.80x = 325,279,937,533,562,944
  5. Step 5: Solve for x
    x = 325,279,937,533,562,944/612,390,070.80
  6. Step 6: Final answer
    x = 531,164,617.20

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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.