Home / 660,553,685.90-990,830,528.85-442,875,452.30

Finding the Fourth Proportional to 660,553,685.90, 990,830,528.85 and 442,875,452.30

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Solution

The fourth proportional to 660,553,685.90, 990,830,528.85 and 442,875,452.30 is: 664,313,178.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,553,685.90 : 990,830,528.85 = 442,875,452.30 : x
  2. Step 2: Convert to fraction form
    660,553,685.90/990,830,528.85 = 442,875,452.30/x
  3. Step 3: Cross multiply
    660,553,685.90x = 990,830,528.85 × 442,875,452.30
  4. Step 4: Simplify right side
    660,553,685.90x = 438,814,518,617,091,968
  5. Step 5: Solve for x
    x = 438,814,518,617,091,968/660,553,685.90
  6. Step 6: Final answer
    x = 664,313,178.45

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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.