Home / 280,955,430.29-421,423,041.95-73,692,185.50

Finding the Fourth Proportional to 280,955,430.29, 421,423,041.95 and 73,692,185.50

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Solution

The fourth proportional to 280,955,430.29, 421,423,041.95 and 73,692,185.50 is: 110,535,628.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,955,430.29 : 421,423,041.95 = 73,692,185.50 : x
  2. Step 2: Convert to fraction form
    280,955,430.29/421,423,041.95 = 73,692,185.50/x
  3. Step 3: Cross multiply
    280,955,430.29x = 421,423,041.95 × 73,692,185.50
  4. Step 4: Simplify right side
    280,955,430.29x = 31,055,584,979,931,664
  5. Step 5: Solve for x
    x = 31,055,584,979,931,664/280,955,430.29
  6. Step 6: Final answer
    x = 110,535,628.19

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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.