Home / 201,912,139.10-302,868,208.65-153,539,198.30

Finding the Fourth Proportional to 201,912,139.10, 302,868,208.65 and 153,539,198.30

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Solution

The fourth proportional to 201,912,139.10, 302,868,208.65 and 153,539,198.30 is: 230,308,797.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,912,139.10 : 302,868,208.65 = 153,539,198.30 : x
  2. Step 2: Convert to fraction form
    201,912,139.10/302,868,208.65 = 153,539,198.30/x
  3. Step 3: Cross multiply
    201,912,139.10x = 302,868,208.65 × 153,539,198.30
  4. Step 4: Simplify right side
    201,912,139.10x = 46,502,141,946,678,128
  5. Step 5: Solve for x
    x = 46,502,141,946,678,128/201,912,139.10
  6. Step 6: Final answer
    x = 230,308,797.45

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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.