Home / 211,520,636.69-291,926,987.48-118,706,237.51

Finding the Fourth Proportional to 211,520,636.69, 291,926,987.48 and 118,706,237.51

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Solution

The fourth proportional to 211,520,636.69, 291,926,987.48 and 118,706,237.51 is: 163,830,607.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,520,636.69 : 291,926,987.48 = 118,706,237.51 : x
  2. Step 2: Convert to fraction form
    211,520,636.69/291,926,987.48 = 118,706,237.51/x
  3. Step 3: Cross multiply
    211,520,636.69x = 291,926,987.48 × 118,706,237.51
  4. Step 4: Simplify right side
    211,520,636.69x = 34,653,554,310,216,808
  5. Step 5: Solve for x
    x = 34,653,554,310,216,808/211,520,636.69
  6. Step 6: Final answer
    x = 163,830,607.04

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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.