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Finding the Fourth Proportional to 98,742,925.60, 148,114,388.40 and 84,130,266.40

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Solution

The fourth proportional to 98,742,925.60, 148,114,388.40 and 84,130,266.40 is: 126,195,399.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,742,925.60 : 148,114,388.40 = 84,130,266.40 : x
  2. Step 2: Convert to fraction form
    98,742,925.60/148,114,388.40 = 84,130,266.40/x
  3. Step 3: Cross multiply
    98,742,925.60x = 148,114,388.40 × 84,130,266.40
  4. Step 4: Simplify right side
    98,742,925.60x = 12,460,902,953,765,072
  5. Step 5: Solve for x
    x = 12,460,902,953,765,072/98,742,925.60
  6. Step 6: Final answer
    x = 126,195,399.60

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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.