Home / 1,119,852,903.60-1,679,779,355.40-392,915,098.80

Finding the Fourth Proportional to 1,119,852,903.60, 1,679,779,355.40 and 392,915,098.80

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Solution

The fourth proportional to 1,119,852,903.60, 1,679,779,355.40 and 392,915,098.80 is: 589,372,648.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,852,903.60 : 1,679,779,355.40 = 392,915,098.80 : x
  2. Step 2: Convert to fraction form
    1,119,852,903.60/1,679,779,355.40 = 392,915,098.80/x
  3. Step 3: Cross multiply
    1,119,852,903.60x = 1,679,779,355.40 × 392,915,098.80
  4. Step 4: Simplify right side
    1,119,852,903.60x = 660,010,671,389,191,424
  5. Step 5: Solve for x
    x = 660,010,671,389,191,424/1,119,852,903.60
  6. Step 6: Final answer
    x = 589,372,648.20

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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.