Home / 70,262,959-96,973,066.80-40,487,814.28

Finding the Fourth Proportional to 70,262,959, 96,973,066.80 and 40,487,814.28

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Solution

The fourth proportional to 70,262,959, 96,973,066.80 and 40,487,814.28 is: 55,879,051.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,262,959 : 96,973,066.80 = 40,487,814.28 : x
  2. Step 2: Convert to fraction form
    70,262,959/96,973,066.80 = 40,487,814.28/x
  3. Step 3: Cross multiply
    70,262,959x = 96,973,066.80 × 40,487,814.28
  4. Step 4: Simplify right side
    70,262,959x = 3,926,227,518,760,434
  5. Step 5: Solve for x
    x = 3,926,227,518,760,434/70,262,959
  6. Step 6: Final answer
    x = 55,879,051.70

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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.