Home / 18,258,885,878.40-27,369,213,341.53-7,641,193,547.12

Finding the Fourth Proportional to 18,258,885,878.40, 27,369,213,341.53 and 7,641,193,547.12

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Solution

The fourth proportional to 18,258,885,878.40, 27,369,213,341.53 and 7,641,193,547.12 is: 11,453,790,651.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,258,885,878.40 : 27,369,213,341.53 = 7,641,193,547.12 : x
  2. Step 2: Convert to fraction form
    18,258,885,878.40/27,369,213,341.53 = 7,641,193,547.12/x
  3. Step 3: Cross multiply
    18,258,885,878.40x = 27,369,213,341.53 × 7,641,193,547.12
  4. Step 4: Simplify right side
    18,258,885,878.40x = 209,133,456,374,943,350,784
  5. Step 5: Solve for x
    x = 209,133,456,374,943,350,784/18,258,885,878.40
  6. Step 6: Final answer
    x = 11,453,790,651.18

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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.