Home / 509,334,274.40-764,001,411.60-145,828,630.40

Finding the Fourth Proportional to 509,334,274.40, 764,001,411.60 and 145,828,630.40

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Solution

The fourth proportional to 509,334,274.40, 764,001,411.60 and 145,828,630.40 is: 218,742,945.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,334,274.40 : 764,001,411.60 = 145,828,630.40 : x
  2. Step 2: Convert to fraction form
    509,334,274.40/764,001,411.60 = 145,828,630.40/x
  3. Step 3: Cross multiply
    509,334,274.40x = 764,001,411.60 × 145,828,630.40
  4. Step 4: Simplify right side
    509,334,274.40x = 111,413,279,477,294,688
  5. Step 5: Solve for x
    x = 111,413,279,477,294,688/509,334,274.40
  6. Step 6: Final answer
    x = 218,742,945.60

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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.