Home / 86,355,686.40-119,088,402.72-56,541,844.80

Finding the Fourth Proportional to 86,355,686.40, 119,088,402.72 and 56,541,844.80

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Solution

The fourth proportional to 86,355,686.40, 119,088,402.72 and 56,541,844.80 is: 77,973,764.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,355,686.40 : 119,088,402.72 = 56,541,844.80 : x
  2. Step 2: Convert to fraction form
    86,355,686.40/119,088,402.72 = 56,541,844.80/x
  3. Step 3: Cross multiply
    86,355,686.40x = 119,088,402.72 × 56,541,844.80
  4. Step 4: Simplify right side
    86,355,686.40x = 6,733,477,984,074,137
  5. Step 5: Solve for x
    x = 6,733,477,984,074,137/86,355,686.40
  6. Step 6: Final answer
    x = 77,973,764.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.