Home / 7,128,241,411,575.40-9,836,974,209,155.80-3,880,326,398,675.40

Finding the Fourth Proportional to 7,128,241,411,575.40, 9,836,974,209,155.80 and 3,880,326,398,675.40

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Solution

The fourth proportional to 7,128,241,411,575.40, 9,836,974,209,155.80 and 3,880,326,398,675.40 is: 5,354,851,007,836.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,128,241,411,575.40 : 9,836,974,209,155.80 = 3,880,326,398,675.40 : x
  2. Step 2: Convert to fraction form
    7,128,241,411,575.40/9,836,974,209,155.80 = 3,880,326,398,675.40/x
  3. Step 3: Cross multiply
    7,128,241,411,575.40x = 9,836,974,209,155.80 × 3,880,326,398,675.40
  4. Step 4: Simplify right side
    7,128,241,411,575.40x = 38,170,670,706,876,318,293,688,320
  5. Step 5: Solve for x
    x = 38,170,670,706,876,318,293,688,320/7,128,241,411,575.40
  6. Step 6: Final answer
    x = 5,354,851,007,836.49

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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.