Home / 105,154,080.51-157,590,127-81,838,975.03

Finding the Fourth Proportional to 105,154,080.51, 157,590,127 and 81,838,975.03

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Solution

The fourth proportional to 105,154,080.51, 157,590,127 and 81,838,975.03 is: 122,648,730.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,154,080.51 : 157,590,127 = 81,838,975.03 : x
  2. Step 2: Convert to fraction form
    105,154,080.51/157,590,127 = 81,838,975.03/x
  3. Step 3: Cross multiply
    105,154,080.51x = 157,590,127 × 81,838,975.03
  4. Step 4: Simplify right side
    105,154,080.51x = 12,897,014,468,527,528
  5. Step 5: Solve for x
    x = 12,897,014,468,527,528/105,154,080.51
  6. Step 6: Final answer
    x = 122,648,730.38

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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.