Home / 121,160,678.40-181,742,054.40-40,381,646.40

Finding the Fourth Proportional to 121,160,678.40, 181,742,054.40 and 40,381,646.40

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Solution

The fourth proportional to 121,160,678.40, 181,742,054.40 and 40,381,646.40 is: 60,572,815.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,160,678.40 : 181,742,054.40 = 40,381,646.40 : x
  2. Step 2: Convert to fraction form
    121,160,678.40/181,742,054.40 = 40,381,646.40/x
  3. Step 3: Cross multiply
    121,160,678.40x = 181,742,054.40 × 40,381,646.40
  4. Step 4: Simplify right side
    121,160,678.40x = 7,339,043,376,790,364
  5. Step 5: Solve for x
    x = 7,339,043,376,790,364/121,160,678.40
  6. Step 6: Final answer
    x = 60,572,815.16

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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.