Home / 157,736,340.51-217,676,825.37-86,210,666.79

Finding the Fourth Proportional to 157,736,340.51, 217,676,825.37 and 86,210,666.79

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Solution

The fourth proportional to 157,736,340.51, 217,676,825.37 and 86,210,666.79 is: 118,971,089.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,736,340.51 : 217,676,825.37 = 86,210,666.79 : x
  2. Step 2: Convert to fraction form
    157,736,340.51/217,676,825.37 = 86,210,666.79/x
  3. Step 3: Cross multiply
    157,736,340.51x = 217,676,825.37 × 86,210,666.79
  4. Step 4: Simplify right side
    157,736,340.51x = 18,766,064,259,878,092
  5. Step 5: Solve for x
    x = 18,766,064,259,878,092/157,736,340.51
  6. Step 6: Final answer
    x = 118,971,089.35

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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.