Home / 21,275,144,802.90-31,912,717,204.35-20,984,907,158.10

Finding the Fourth Proportional to 21,275,144,802.90, 31,912,717,204.35 and 20,984,907,158.10

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Solution

The fourth proportional to 21,275,144,802.90, 31,912,717,204.35 and 20,984,907,158.10 is: 31,477,360,737.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,275,144,802.90 : 31,912,717,204.35 = 20,984,907,158.10 : x
  2. Step 2: Convert to fraction form
    21,275,144,802.90/31,912,717,204.35 = 20,984,907,158.10/x
  3. Step 3: Cross multiply
    21,275,144,802.90x = 31,912,717,204.35 × 20,984,907,158.10
  4. Step 4: Simplify right side
    21,275,144,802.90x = 669,685,407,695,985,311,744
  5. Step 5: Solve for x
    x = 669,685,407,695,985,311,744/21,275,144,802.90
  6. Step 6: Final answer
    x = 31,477,360,737.15

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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.