Home / 316,891,205.40-475,336,808.10-314,875,666.20

Finding the Fourth Proportional to 316,891,205.40, 475,336,808.10 and 314,875,666.20

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Solution

The fourth proportional to 316,891,205.40, 475,336,808.10 and 314,875,666.20 is: 472,313,499.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,891,205.40 : 475,336,808.10 = 314,875,666.20 : x
  2. Step 2: Convert to fraction form
    316,891,205.40/475,336,808.10 = 314,875,666.20/x
  3. Step 3: Cross multiply
    316,891,205.40x = 475,336,808.10 × 314,875,666.20
  4. Step 4: Simplify right side
    316,891,205.40x = 149,671,994,119,869,056
  5. Step 5: Solve for x
    x = 149,671,994,119,869,056/316,891,205.40
  6. Step 6: Final answer
    x = 472,313,499.30

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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.