Home / 90,828,071.40-125,506,696.84-64,677,188.36

Finding the Fourth Proportional to 90,828,071.40, 125,506,696.84 and 64,677,188.36

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Solution

The fourth proportional to 90,828,071.40, 125,506,696.84 and 64,677,188.36 is: 89,371,271.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,828,071.40 : 125,506,696.84 = 64,677,188.36 : x
  2. Step 2: Convert to fraction form
    90,828,071.40/125,506,696.84 = 64,677,188.36/x
  3. Step 3: Cross multiply
    90,828,071.40x = 125,506,696.84 × 64,677,188.36
  4. Step 4: Simplify right side
    90,828,071.40x = 8,117,420,271,962,097
  5. Step 5: Solve for x
    x = 8,117,420,271,962,097/90,828,071.40
  6. Step 6: Final answer
    x = 89,371,271.97

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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.