Home / 315,473,401.80-472,413,840.30-207,181,715.40

Finding the Fourth Proportional to 315,473,401.80, 472,413,840.30 and 207,181,715.40

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Solution

The fourth proportional to 315,473,401.80, 472,413,840.30 and 207,181,715.40 is: 310,249,641.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,473,401.80 : 472,413,840.30 = 207,181,715.40 : x
  2. Step 2: Convert to fraction form
    315,473,401.80/472,413,840.30 = 207,181,715.40/x
  3. Step 3: Cross multiply
    315,473,401.80x = 472,413,840.30 × 207,181,715.40
  4. Step 4: Simplify right side
    315,473,401.80x = 97,875,509,812,055,648
  5. Step 5: Solve for x
    x = 97,875,509,812,055,648/315,473,401.80
  6. Step 6: Final answer
    x = 310,249,641.50

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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.