Home / 161,758,009.40-242,637,014.10-70,785,030.20

Finding the Fourth Proportional to 161,758,009.40, 242,637,014.10 and 70,785,030.20

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Solution

The fourth proportional to 161,758,009.40, 242,637,014.10 and 70,785,030.20 is: 106,177,545.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,758,009.40 : 242,637,014.10 = 70,785,030.20 : x
  2. Step 2: Convert to fraction form
    161,758,009.40/242,637,014.10 = 70,785,030.20/x
  3. Step 3: Cross multiply
    161,758,009.40x = 242,637,014.10 × 70,785,030.20
  4. Step 4: Simplify right side
    161,758,009.40x = 17,175,068,370,706,326
  5. Step 5: Solve for x
    x = 17,175,068,370,706,326/161,758,009.40
  6. Step 6: Final answer
    x = 106,177,545.30

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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.