Home / 918,583,853.40-1,377,875,780.10-660,303,527.40

Finding the Fourth Proportional to 918,583,853.40, 1,377,875,780.10 and 660,303,527.40

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Solution

The fourth proportional to 918,583,853.40, 1,377,875,780.10 and 660,303,527.40 is: 990,455,291.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,583,853.40 : 1,377,875,780.10 = 660,303,527.40 : x
  2. Step 2: Convert to fraction form
    918,583,853.40/1,377,875,780.10 = 660,303,527.40/x
  3. Step 3: Cross multiply
    918,583,853.40x = 1,377,875,780.10 × 660,303,527.40
  4. Step 4: Simplify right side
    918,583,853.40x = 909,816,237,919,056,640
  5. Step 5: Solve for x
    x = 909,816,237,919,056,640/918,583,853.40
  6. Step 6: Final answer
    x = 990,455,291.10

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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.