Home / 15,398,168,841.51-21,249,191,750.79-8,531,540,424.96

Finding the Fourth Proportional to 15,398,168,841.51, 21,249,191,750.79 and 8,531,540,424.96

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Solution

The fourth proportional to 15,398,168,841.51, 21,249,191,750.79 and 8,531,540,424.96 is: 11,773,369,956.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,398,168,841.51 : 21,249,191,750.79 = 8,531,540,424.96 : x
  2. Step 2: Convert to fraction form
    15,398,168,841.51/21,249,191,750.79 = 8,531,540,424.96/x
  3. Step 3: Cross multiply
    15,398,168,841.51x = 21,249,191,750.79 × 8,531,540,424.96
  4. Step 4: Simplify right side
    15,398,168,841.51x = 181,288,338,419,591,446,528
  5. Step 5: Solve for x
    x = 181,288,338,419,591,446,528/15,398,168,841.51
  6. Step 6: Final answer
    x = 11,773,369,956.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.