Home / 158,068,185.77-218,136,678.95-86,539,873.79

Finding the Fourth Proportional to 158,068,185.77, 218,136,678.95 and 86,539,873.79

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Solution

The fourth proportional to 158,068,185.77, 218,136,678.95 and 86,539,873.79 is: 119,426,439.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,068,185.77 : 218,136,678.95 = 86,539,873.79 : x
  2. Step 2: Convert to fraction form
    158,068,185.77/218,136,678.95 = 86,539,873.79/x
  3. Step 3: Cross multiply
    158,068,185.77x = 218,136,678.95 × 86,539,873.79
  4. Step 4: Simplify right side
    158,068,185.77x = 18,877,520,665,302,752
  5. Step 5: Solve for x
    x = 18,877,520,665,302,752/158,068,185.77
  6. Step 6: Final answer
    x = 119,426,439.76

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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.