Home / 21,258,604,991.20-31,887,907,486.80-19,710,670,885.60

Finding the Fourth Proportional to 21,258,604,991.20, 31,887,907,486.80 and 19,710,670,885.60

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Solution

The fourth proportional to 21,258,604,991.20, 31,887,907,486.80 and 19,710,670,885.60 is: 29,566,006,328.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,258,604,991.20 : 31,887,907,486.80 = 19,710,670,885.60 : x
  2. Step 2: Convert to fraction form
    21,258,604,991.20/31,887,907,486.80 = 19,710,670,885.60/x
  3. Step 3: Cross multiply
    21,258,604,991.20x = 31,887,907,486.80 × 19,710,670,885.60
  4. Step 4: Simplify right side
    21,258,604,991.20x = 628,532,049,702,774,898,688
  5. Step 5: Solve for x
    x = 628,532,049,702,774,898,688/21,258,604,991.20
  6. Step 6: Final answer
    x = 29,566,006,328.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.