Home / 31,866,778,302.48-43,980,010,262.86-18,136,909,777.19

Finding the Fourth Proportional to 31,866,778,302.48, 43,980,010,262.86 and 18,136,909,777.19

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Solution

The fourth proportional to 31,866,778,302.48, 43,980,010,262.86 and 18,136,909,777.19 is: 25,031,130,243.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,866,778,302.48 : 43,980,010,262.86 = 18,136,909,777.19 : x
  2. Step 2: Convert to fraction form
    31,866,778,302.48/43,980,010,262.86 = 18,136,909,777.19/x
  3. Step 3: Cross multiply
    31,866,778,302.48x = 43,980,010,262.86 × 18,136,909,777.19
  4. Step 4: Simplify right side
    31,866,778,302.48x = 797,661,478,137,234,718,720
  5. Step 5: Solve for x
    x = 797,661,478,137,234,718,720/31,866,778,302.48
  6. Step 6: Final answer
    x = 25,031,130,243.72

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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.