Home / 153,254,185.34-211,417,219.04-100,307,582.69

Finding the Fourth Proportional to 153,254,185.34, 211,417,219.04 and 100,307,582.69

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Solution

The fourth proportional to 153,254,185.34, 211,417,219.04 and 100,307,582.69 is: 138,376,319.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,254,185.34 : 211,417,219.04 = 100,307,582.69 : x
  2. Step 2: Convert to fraction form
    153,254,185.34/211,417,219.04 = 100,307,582.69/x
  3. Step 3: Cross multiply
    153,254,185.34x = 211,417,219.04 × 100,307,582.69
  4. Step 4: Simplify right side
    153,254,185.34x = 21,206,750,179,386,020
  5. Step 5: Solve for x
    x = 21,206,750,179,386,020/153,254,185.34
  6. Step 6: Final answer
    x = 138,376,319.92

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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.