Home / 162,931,288.80-244,680,368.40-86,403,784.80

Finding the Fourth Proportional to 162,931,288.80, 244,680,368.40 and 86,403,784.80

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Solution

The fourth proportional to 162,931,288.80, 244,680,368.40 and 86,403,784.80 is: 129,755,985.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,931,288.80 : 244,680,368.40 = 86,403,784.80 : x
  2. Step 2: Convert to fraction form
    162,931,288.80/244,680,368.40 = 86,403,784.80/x
  3. Step 3: Cross multiply
    162,931,288.80x = 244,680,368.40 × 86,403,784.80
  4. Step 4: Simplify right side
    162,931,288.80x = 21,141,309,896,018,320
  5. Step 5: Solve for x
    x = 21,141,309,896,018,320/162,931,288.80
  6. Step 6: Final answer
    x = 129,755,985.19

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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.