Home / 1,208,524,973.80-1,812,787,460.70-391,223,828.20

Finding the Fourth Proportional to 1,208,524,973.80, 1,812,787,460.70 and 391,223,828.20

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Solution

The fourth proportional to 1,208,524,973.80, 1,812,787,460.70 and 391,223,828.20 is: 586,835,742.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,524,973.80 : 1,812,787,460.70 = 391,223,828.20 : x
  2. Step 2: Convert to fraction form
    1,208,524,973.80/1,812,787,460.70 = 391,223,828.20/x
  3. Step 3: Cross multiply
    1,208,524,973.80x = 1,812,787,460.70 × 391,223,828.20
  4. Step 4: Simplify right side
    1,208,524,973.80x = 709,205,650,088,011,008
  5. Step 5: Solve for x
    x = 709,205,650,088,011,008/1,208,524,973.80
  6. Step 6: Final answer
    x = 586,835,742.30

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Double scale
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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.