Home / 389,685,623.14-537,764,577.42-213,473,368.81

Finding the Fourth Proportional to 389,685,623.14, 537,764,577.42 and 213,473,368.81

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Solution

The fourth proportional to 389,685,623.14, 537,764,577.42 and 213,473,368.81 is: 294,592,382.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,685,623.14 : 537,764,577.42 = 213,473,368.81 : x
  2. Step 2: Convert to fraction form
    389,685,623.14/537,764,577.42 = 213,473,368.81/x
  3. Step 3: Cross multiply
    389,685,623.14x = 537,764,577.42 × 213,473,368.81
  4. Step 4: Simplify right side
    389,685,623.14x = 114,798,415,968,533,456
  5. Step 5: Solve for x
    x = 114,798,415,968,533,456/389,685,623.14
  6. Step 6: Final answer
    x = 294,592,382.04

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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.