Home / 21,125,642,783.40-31,688,464,175.10-11,330,122,271.40

Finding the Fourth Proportional to 21,125,642,783.40, 31,688,464,175.10 and 11,330,122,271.40

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Solution

The fourth proportional to 21,125,642,783.40, 31,688,464,175.10 and 11,330,122,271.40 is: 16,995,183,407.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,125,642,783.40 : 31,688,464,175.10 = 11,330,122,271.40 : x
  2. Step 2: Convert to fraction form
    21,125,642,783.40/31,688,464,175.10 = 11,330,122,271.40/x
  3. Step 3: Cross multiply
    21,125,642,783.40x = 31,688,464,175.10 × 11,330,122,271.40
  4. Step 4: Simplify right side
    21,125,642,783.40x = 359,034,173,696,761,528,320
  5. Step 5: Solve for x
    x = 359,034,173,696,761,528,320/21,125,642,783.40
  6. Step 6: Final answer
    x = 16,995,183,407.10

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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.