Home / 201,581,918.40-302,428,864.80-86,621,534.40

Finding the Fourth Proportional to 201,581,918.40, 302,428,864.80 and 86,621,534.40

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Solution

The fourth proportional to 201,581,918.40, 302,428,864.80 and 86,621,534.40 is: 129,956,359.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,581,918.40 : 302,428,864.80 = 86,621,534.40 : x
  2. Step 2: Convert to fraction form
    201,581,918.40/302,428,864.80 = 86,621,534.40/x
  3. Step 3: Cross multiply
    201,581,918.40x = 302,428,864.80 × 86,621,534.40
  4. Step 4: Simplify right side
    201,581,918.40x = 26,196,852,315,826,152
  5. Step 5: Solve for x
    x = 26,196,852,315,826,152/201,581,918.40
  6. Step 6: Final answer
    x = 129,956,359.80

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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.