Home / 99,828,005.20-149,742,007.80-70,602,686.80

Finding the Fourth Proportional to 99,828,005.20, 149,742,007.80 and 70,602,686.80

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Solution

The fourth proportional to 99,828,005.20, 149,742,007.80 and 70,602,686.80 is: 105,904,030.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,828,005.20 : 149,742,007.80 = 70,602,686.80 : x
  2. Step 2: Convert to fraction form
    99,828,005.20/149,742,007.80 = 70,602,686.80/x
  3. Step 3: Cross multiply
    99,828,005.20x = 149,742,007.80 × 70,602,686.80
  4. Step 4: Simplify right side
    99,828,005.20x = 10,572,188,077,506,558
  5. Step 5: Solve for x
    x = 10,572,188,077,506,558/99,828,005.20
  6. Step 6: Final answer
    x = 105,904,030.20

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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.