Home / 201,547,298.70-302,320,948.05-86,512,265.10

Finding the Fourth Proportional to 201,547,298.70, 302,320,948.05 and 86,512,265.10

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Solution

The fourth proportional to 201,547,298.70, 302,320,948.05 and 86,512,265.10 is: 129,768,397.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,547,298.70 : 302,320,948.05 = 86,512,265.10 : x
  2. Step 2: Convert to fraction form
    201,547,298.70/302,320,948.05 = 86,512,265.10/x
  3. Step 3: Cross multiply
    201,547,298.70x = 302,320,948.05 × 86,512,265.10
  4. Step 4: Simplify right side
    201,547,298.70x = 26,154,470,002,984,928
  5. Step 5: Solve for x
    x = 26,154,470,002,984,928/201,547,298.70
  6. Step 6: Final answer
    x = 129,768,397.65

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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.