Home / 21,046,075,862.40-29,047,326,884.82-12,588,830,076.60

Finding the Fourth Proportional to 21,046,075,862.40, 29,047,326,884.82 and 12,588,830,076.60

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Solution

The fourth proportional to 21,046,075,862.40, 29,047,326,884.82 and 12,588,830,076.60 is: 17,374,823,920.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,046,075,862.40 : 29,047,326,884.82 = 12,588,830,076.60 : x
  2. Step 2: Convert to fraction form
    21,046,075,862.40/29,047,326,884.82 = 12,588,830,076.60/x
  3. Step 3: Cross multiply
    21,046,075,862.40x = 29,047,326,884.82 × 12,588,830,076.60
  4. Step 4: Simplify right side
    21,046,075,862.40x = 365,671,862,332,453,814,272
  5. Step 5: Solve for x
    x = 365,671,862,332,453,814,272/21,046,075,862.40
  6. Step 6: Final answer
    x = 17,374,823,920.77

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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.