Home / 161,698,005.60-242,547,008.40-80,889,813.60

Finding the Fourth Proportional to 161,698,005.60, 242,547,008.40 and 80,889,813.60

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Solution

The fourth proportional to 161,698,005.60, 242,547,008.40 and 80,889,813.60 is: 121,334,720.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,698,005.60 : 242,547,008.40 = 80,889,813.60 : x
  2. Step 2: Convert to fraction form
    161,698,005.60/242,547,008.40 = 80,889,813.60/x
  3. Step 3: Cross multiply
    161,698,005.60x = 242,547,008.40 × 80,889,813.60
  4. Step 4: Simplify right side
    161,698,005.60x = 19,619,582,298,713,632
  5. Step 5: Solve for x
    x = 19,619,582,298,713,632/161,698,005.60
  6. Step 6: Final answer
    x = 121,334,720.40

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1.5x scale

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.