Home / 158,068,020.13-218,136,450.30-86,539,708.39

Finding the Fourth Proportional to 158,068,020.13, 218,136,450.30 and 86,539,708.39

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Solution

The fourth proportional to 158,068,020.13, 218,136,450.30 and 86,539,708.39 is: 119,426,211.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,068,020.13 : 218,136,450.30 = 86,539,708.39 : x
  2. Step 2: Convert to fraction form
    158,068,020.13/218,136,450.30 = 86,539,708.39/x
  3. Step 3: Cross multiply
    158,068,020.13x = 218,136,450.30 × 86,539,708.39
  4. Step 4: Simplify right side
    158,068,020.13x = 18,877,464,798,191,728
  5. Step 5: Solve for x
    x = 18,877,464,798,191,728/158,068,020.13
  6. Step 6: Final answer
    x = 119,426,211.47

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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.