Home / 749,958,946.40-1,124,042,624.40-386,266,095.20

Finding the Fourth Proportional to 749,958,946.40, 1,124,042,624.40 and 386,266,095.20

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Solution

The fourth proportional to 749,958,946.40, 1,124,042,624.40 and 386,266,095.20 is: 578,937,763.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,958,946.40 : 1,124,042,624.40 = 386,266,095.20 : x
  2. Step 2: Convert to fraction form
    749,958,946.40/1,124,042,624.40 = 386,266,095.20/x
  3. Step 3: Cross multiply
    749,958,946.40x = 1,124,042,624.40 × 386,266,095.20
  4. Step 4: Simplify right side
    749,958,946.40x = 434,179,555,365,348,288
  5. Step 5: Solve for x
    x = 434,179,555,365,348,288/749,958,946.40
  6. Step 6: Final answer
    x = 578,937,763.79

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1.5x scale

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.