Home / 91,115,471,758.47-136,623,384,045.63-72,349,307,547.23

Finding the Fourth Proportional to 91,115,471,758.47, 136,623,384,045.63 and 72,349,307,547.23

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Solution

The fourth proportional to 91,115,471,758.47, 136,623,384,045.63 and 72,349,307,547.23 is: 108,484,399,407.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,115,471,758.47 : 136,623,384,045.63 = 72,349,307,547.23 : x
  2. Step 2: Convert to fraction form
    91,115,471,758.47/136,623,384,045.63 = 72,349,307,547.23/x
  3. Step 3: Cross multiply
    91,115,471,758.47x = 136,623,384,045.63 × 72,349,307,547.23
  4. Step 4: Simplify right side
    91,115,471,758.47x = 9,884,607,230,459,919,728,640
  5. Step 5: Solve for x
    x = 9,884,607,230,459,919,728,640/91,115,471,758.47
  6. Step 6: Final answer
    x = 108,484,399,407.62

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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.