Home / 20,698,210,035.20-31,047,315,052.80-13,259,736,646.40

Finding the Fourth Proportional to 20,698,210,035.20, 31,047,315,052.80 and 13,259,736,646.40

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Solution

The fourth proportional to 20,698,210,035.20, 31,047,315,052.80 and 13,259,736,646.40 is: 19,889,604,969.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,698,210,035.20 : 31,047,315,052.80 = 13,259,736,646.40 : x
  2. Step 2: Convert to fraction form
    20,698,210,035.20/31,047,315,052.80 = 13,259,736,646.40/x
  3. Step 3: Cross multiply
    20,698,210,035.20x = 31,047,315,052.80 × 13,259,736,646.40
  4. Step 4: Simplify right side
    20,698,210,035.20x = 411,679,221,177,938,477,056
  5. Step 5: Solve for x
    x = 411,679,221,177,938,477,056/20,698,210,035.20
  6. Step 6: Final answer
    x = 19,889,604,969.60

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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.