Home / 427,735,690.02-641,500,804.35-197,483,547.78

Finding the Fourth Proportional to 427,735,690.02, 641,500,804.35 and 197,483,547.78

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Solution

The fourth proportional to 427,735,690.02, 641,500,804.35 and 197,483,547.78 is: 296,177,891.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,735,690.02 : 641,500,804.35 = 197,483,547.78 : x
  2. Step 2: Convert to fraction form
    427,735,690.02/641,500,804.35 = 197,483,547.78/x
  3. Step 3: Cross multiply
    427,735,690.02x = 641,500,804.35 × 197,483,547.78
  4. Step 4: Simplify right side
    427,735,690.02x = 126,685,854,746,761,664
  5. Step 5: Solve for x
    x = 126,685,854,746,761,664/427,735,690.02
  6. Step 6: Final answer
    x = 296,177,891.40

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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.