Home / 1,279,477,209.60-1,919,215,814.40-835,617,686.40

Finding the Fourth Proportional to 1,279,477,209.60, 1,919,215,814.40 and 835,617,686.40

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Solution

The fourth proportional to 1,279,477,209.60, 1,919,215,814.40 and 835,617,686.40 is: 1,253,426,529.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,477,209.60 : 1,919,215,814.40 = 835,617,686.40 : x
  2. Step 2: Convert to fraction form
    1,279,477,209.60/1,919,215,814.40 = 835,617,686.40/x
  3. Step 3: Cross multiply
    1,279,477,209.60x = 1,919,215,814.40 × 835,617,686.40
  4. Step 4: Simplify right side
    1,279,477,209.60x = 1,603,730,678,531,219,712
  5. Step 5: Solve for x
    x = 1,603,730,678,531,219,712/1,279,477,209.60
  6. Step 6: Final answer
    x = 1,253,426,529.60

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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.