Home / 152,157,610-209,977,501.80-86,968,913.68

Finding the Fourth Proportional to 152,157,610, 209,977,501.80 and 86,968,913.68

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Solution

The fourth proportional to 152,157,610, 209,977,501.80 and 86,968,913.68 is: 120,017,100.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,157,610 : 209,977,501.80 = 86,968,913.68 : x
  2. Step 2: Convert to fraction form
    152,157,610/209,977,501.80 = 86,968,913.68/x
  3. Step 3: Cross multiply
    152,157,610x = 209,977,501.80 × 86,968,913.68
  4. Step 4: Simplify right side
    152,157,610x = 18,261,515,228,786,248
  5. Step 5: Solve for x
    x = 18,261,515,228,786,248/152,157,610
  6. Step 6: Final answer
    x = 120,017,100.88

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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.