Home / 191,866,096.80-287,715,164.40-76,812,400.80

Finding the Fourth Proportional to 191,866,096.80, 287,715,164.40 and 76,812,400.80

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Solution

The fourth proportional to 191,866,096.80, 287,715,164.40 and 76,812,400.80 is: 115,184,980.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,866,096.80 : 287,715,164.40 = 76,812,400.80 : x
  2. Step 2: Convert to fraction form
    191,866,096.80/287,715,164.40 = 76,812,400.80/x
  3. Step 3: Cross multiply
    191,866,096.80x = 287,715,164.40 × 76,812,400.80
  4. Step 4: Simplify right side
    191,866,096.80x = 22,100,092,524,130,688
  5. Step 5: Solve for x
    x = 22,100,092,524,130,688/191,866,096.80
  6. Step 6: Final answer
    x = 115,184,980.01

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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.