Home / 21,241,931,858.40-29,680,657,072.80-21,241,931,858.40

Finding the Fourth Proportional to 21,241,931,858.40, 29,680,657,072.80 and 21,241,931,858.40

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Solution

The fourth proportional to 21,241,931,858.40, 29,680,657,072.80 and 21,241,931,858.40 is: 29,680,657,072.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,241,931,858.40 : 29,680,657,072.80 = 21,241,931,858.40 : x
  2. Step 2: Convert to fraction form
    21,241,931,858.40/29,680,657,072.80 = 21,241,931,858.40/x
  3. Step 3: Cross multiply
    21,241,931,858.40x = 29,680,657,072.80 × 21,241,931,858.40
  4. Step 4: Simplify right side
    21,241,931,858.40x = 630,474,495,052,955,648,000
  5. Step 5: Solve for x
    x = 630,474,495,052,955,648,000/21,241,931,858.40
  6. Step 6: Final answer
    x = 29,680,657,072.80

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.