Home / 282,364,990.40-423,547,485.60-129,309,982.40

Finding the Fourth Proportional to 282,364,990.40, 423,547,485.60 and 129,309,982.40

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Solution

The fourth proportional to 282,364,990.40, 423,547,485.60 and 129,309,982.40 is: 193,964,973.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,364,990.40 : 423,547,485.60 = 129,309,982.40 : x
  2. Step 2: Convert to fraction form
    282,364,990.40/423,547,485.60 = 129,309,982.40/x
  3. Step 3: Cross multiply
    282,364,990.40x = 423,547,485.60 × 129,309,982.40
  4. Step 4: Simplify right side
    282,364,990.40x = 54,768,917,908,500,256
  5. Step 5: Solve for x
    x = 54,768,917,908,500,256/282,364,990.40
  6. Step 6: Final answer
    x = 193,964,973.60

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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.