Home / 91,386,397.74-126,112,482.45-49,570,358.37

Finding the Fourth Proportional to 91,386,397.74, 126,112,482.45 and 49,570,358.37

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Solution

The fourth proportional to 91,386,397.74, 126,112,482.45 and 49,570,358.37 is: 68,406,689.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,386,397.74 : 126,112,482.45 = 49,570,358.37 : x
  2. Step 2: Convert to fraction form
    91,386,397.74/126,112,482.45 = 49,570,358.37/x
  3. Step 3: Cross multiply
    91,386,397.74x = 126,112,482.45 × 49,570,358.37
  4. Step 4: Simplify right side
    91,386,397.74x = 6,251,440,949,976,835
  5. Step 5: Solve for x
    x = 6,251,440,949,976,835/91,386,397.74
  6. Step 6: Final answer
    x = 68,406,689.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.