Home / 660,553,669.90-990,830,504.85-442,875,436.30

Finding the Fourth Proportional to 660,553,669.90, 990,830,504.85 and 442,875,436.30

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Solution

The fourth proportional to 660,553,669.90, 990,830,504.85 and 442,875,436.30 is: 664,313,154.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,553,669.90 : 990,830,504.85 = 442,875,436.30 : x
  2. Step 2: Convert to fraction form
    660,553,669.90/990,830,504.85 = 442,875,436.30/x
  3. Step 3: Cross multiply
    660,553,669.90x = 990,830,504.85 × 442,875,436.30
  4. Step 4: Simplify right side
    660,553,669.90x = 438,814,492,134,793,024
  5. Step 5: Solve for x
    x = 438,814,492,134,793,024/660,553,669.90
  6. Step 6: Final answer
    x = 664,313,154.45

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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.