Home / 388,076,319,837.40-581,594,143,423.54-302,030,469,870.18

Finding the Fourth Proportional to 388,076,319,837.40, 581,594,143,423.54 and 302,030,469,870.18

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Solution

The fourth proportional to 388,076,319,837.40, 581,594,143,423.54 and 302,030,469,870.18 is: 452,640,739,547.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,076,319,837.40 : 581,594,143,423.54 = 302,030,469,870.18 : x
  2. Step 2: Convert to fraction form
    388,076,319,837.40/581,594,143,423.54 = 302,030,469,870.18/x
  3. Step 3: Cross multiply
    388,076,319,837.40x = 581,594,143,423.54 × 302,030,469,870.18
  4. Step 4: Simplify right side
    388,076,319,837.40x = 175,659,152,411,956,659,355,648
  5. Step 5: Solve for x
    x = 175,659,152,411,956,659,355,648/388,076,319,837.40
  6. Step 6: Final answer
    x = 452,640,739,547.20

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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.