Home / 315,423,009.30-473,134,513.95-133,646,567.70

Finding the Fourth Proportional to 315,423,009.30, 473,134,513.95 and 133,646,567.70

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Solution

The fourth proportional to 315,423,009.30, 473,134,513.95 and 133,646,567.70 is: 200,469,851.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,423,009.30 : 473,134,513.95 = 133,646,567.70 : x
  2. Step 2: Convert to fraction form
    315,423,009.30/473,134,513.95 = 133,646,567.70/x
  3. Step 3: Cross multiply
    315,423,009.30x = 473,134,513.95 × 133,646,567.70
  4. Step 4: Simplify right side
    315,423,009.30x = 63,232,803,849,825,272
  5. Step 5: Solve for x
    x = 63,232,803,849,825,272/315,423,009.30
  6. Step 6: Final answer
    x = 200,469,851.55

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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.