Home / 15,398,168,840.51-21,249,191,749.41-8,531,540,423.96

Finding the Fourth Proportional to 15,398,168,840.51, 21,249,191,749.41 and 8,531,540,423.96

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Solution

The fourth proportional to 15,398,168,840.51, 21,249,191,749.41 and 8,531,540,423.96 is: 11,773,369,954.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,398,168,840.51 : 21,249,191,749.41 = 8,531,540,423.96 : x
  2. Step 2: Convert to fraction form
    15,398,168,840.51/21,249,191,749.41 = 8,531,540,423.96/x
  3. Step 3: Cross multiply
    15,398,168,840.51x = 21,249,191,749.41 × 8,531,540,423.96
  4. Step 4: Simplify right side
    15,398,168,840.51x = 181,288,338,386,462,474,240
  5. Step 5: Solve for x
    x = 181,288,338,386,462,474,240/15,398,168,840.51
  6. Step 6: Final answer
    x = 11,773,369,954.85

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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.