Home / 507,597,731.52-761,390,430.75-139,132,373.55

Finding the Fourth Proportional to 507,597,731.52, 761,390,430.75 and 139,132,373.55

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Solution

The fourth proportional to 507,597,731.52, 761,390,430.75 and 139,132,373.55 is: 208,696,870.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,597,731.52 : 761,390,430.75 = 139,132,373.55 : x
  2. Step 2: Convert to fraction form
    507,597,731.52/761,390,430.75 = 139,132,373.55/x
  3. Step 3: Cross multiply
    507,597,731.52x = 761,390,430.75 × 139,132,373.55
  4. Step 4: Simplify right side
    507,597,731.52x = 105,934,057,828,504,416
  5. Step 5: Solve for x
    x = 105,934,057,828,504,416/507,597,731.52
  6. Step 6: Final answer
    x = 208,696,870.08

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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.