Home / 139,163,222.89-192,039,985.98-77,287,547.26

Finding the Fourth Proportional to 139,163,222.89, 192,039,985.98 and 77,287,547.26

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Solution

The fourth proportional to 139,163,222.89, 192,039,985.98 and 77,287,547.26 is: 106,653,893.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,163,222.89 : 192,039,985.98 = 77,287,547.26 : x
  2. Step 2: Convert to fraction form
    139,163,222.89/192,039,985.98 = 77,287,547.26/x
  3. Step 3: Cross multiply
    139,163,222.89x = 192,039,985.98 × 77,287,547.26
  4. Step 4: Simplify right side
    139,163,222.89x = 14,842,299,492,238,988
  5. Step 5: Solve for x
    x = 14,842,299,492,238,988/139,163,222.89
  6. Step 6: Final answer
    x = 106,653,893.06

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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.