Home / 76,431,931.40-105,484,778.34-45,492,199.40

Finding the Fourth Proportional to 76,431,931.40, 105,484,778.34 and 45,492,199.40

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Solution

The fourth proportional to 76,431,931.40, 105,484,778.34 and 45,492,199.40 is: 62,784,421.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,431,931.40 : 105,484,778.34 = 45,492,199.40 : x
  2. Step 2: Convert to fraction form
    76,431,931.40/105,484,778.34 = 45,492,199.40/x
  3. Step 3: Cross multiply
    76,431,931.40x = 105,484,778.34 × 45,492,199.40
  4. Step 4: Simplify right side
    76,431,931.40x = 4,798,734,569,908,081
  5. Step 5: Solve for x
    x = 4,798,734,569,908,081/76,431,931.40
  6. Step 6: Final answer
    x = 62,784,421.14

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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.