Home / 208,217,017.04-287,339,510.28-115,403,516.88

Finding the Fourth Proportional to 208,217,017.04, 287,339,510.28 and 115,403,516.88

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Solution

The fourth proportional to 208,217,017.04, 287,339,510.28 and 115,403,516.88 is: 159,256,868.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,217,017.04 : 287,339,510.28 = 115,403,516.88 : x
  2. Step 2: Convert to fraction form
    208,217,017.04/287,339,510.28 = 115,403,516.88/x
  3. Step 3: Cross multiply
    208,217,017.04x = 287,339,510.28 × 115,403,516.88
  4. Step 4: Simplify right side
    208,217,017.04x = 33,159,990,024,888,908
  5. Step 5: Solve for x
    x = 33,159,990,024,888,908/208,217,017.04
  6. Step 6: Final answer
    x = 159,256,868.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.