Home / 12,771,346,315.20-19,157,019,472.80-9,261,284,798.40

Finding the Fourth Proportional to 12,771,346,315.20, 19,157,019,472.80 and 9,261,284,798.40

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Solution

The fourth proportional to 12,771,346,315.20, 19,157,019,472.80 and 9,261,284,798.40 is: 13,891,927,197.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,771,346,315.20 : 19,157,019,472.80 = 9,261,284,798.40 : x
  2. Step 2: Convert to fraction form
    12,771,346,315.20/19,157,019,472.80 = 9,261,284,798.40/x
  3. Step 3: Cross multiply
    12,771,346,315.20x = 19,157,019,472.80 × 9,261,284,798.40
  4. Step 4: Simplify right side
    12,771,346,315.20x = 177,418,613,226,095,411,200
  5. Step 5: Solve for x
    x = 177,418,613,226,095,411,200/12,771,346,315.20
  6. Step 6: Final answer
    x = 13,891,927,197.60

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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.