Home / 210,736,216.56-315,695,312.64-155,303,378.40

Finding the Fourth Proportional to 210,736,216.56, 315,695,312.64 and 155,303,378.40

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Solution

The fourth proportional to 210,736,216.56, 315,695,312.64 and 155,303,378.40 is: 232,653,643.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,736,216.56 : 315,695,312.64 = 155,303,378.40 : x
  2. Step 2: Convert to fraction form
    210,736,216.56/315,695,312.64 = 155,303,378.40/x
  3. Step 3: Cross multiply
    210,736,216.56x = 315,695,312.64 × 155,303,378.40
  4. Step 4: Simplify right side
    210,736,216.56x = 49,028,548,598,036,224
  5. Step 5: Solve for x
    x = 49,028,548,598,036,224/210,736,216.56
  6. Step 6: Final answer
    x = 232,653,643.49

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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.