Home / 121,160,663.40-181,742,031.90-40,381,631.40

Finding the Fourth Proportional to 121,160,663.40, 181,742,031.90 and 40,381,631.40

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Solution

The fourth proportional to 121,160,663.40, 181,742,031.90 and 40,381,631.40 is: 60,572,792.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,160,663.40 : 181,742,031.90 = 40,381,631.40 : x
  2. Step 2: Convert to fraction form
    121,160,663.40/181,742,031.90 = 40,381,631.40/x
  3. Step 3: Cross multiply
    121,160,663.40x = 181,742,031.90 × 40,381,631.40
  4. Step 4: Simplify right side
    121,160,663.40x = 7,339,039,742,072,842
  5. Step 5: Solve for x
    x = 7,339,039,742,072,842/121,160,663.40
  6. Step 6: Final answer
    x = 60,572,792.66

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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.