Home / 12,655,091.51-18,989,547.80-5,367,417.68

Finding the Fourth Proportional to 12,655,091.51, 18,989,547.80 and 5,367,417.68

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Solution

The fourth proportional to 12,655,091.51, 18,989,547.80 and 5,367,417.68 is: 8,054,057.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,655,091.51 : 18,989,547.80 = 5,367,417.68 : x
  2. Step 2: Convert to fraction form
    12,655,091.51/18,989,547.80 = 5,367,417.68/x
  3. Step 3: Cross multiply
    12,655,091.51x = 18,989,547.80 × 5,367,417.68
  4. Step 4: Simplify right side
    12,655,091.51x = 101,924,834,596,925.11
  5. Step 5: Solve for x
    x = 101,924,834,596,925.11/12,655,091.51
  6. Step 6: Final answer
    x = 8,054,057.49

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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.