Home / 70,046,038.90-105,069,058.35-66,077,946.10

Finding the Fourth Proportional to 70,046,038.90, 105,069,058.35 and 66,077,946.10

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Solution

The fourth proportional to 70,046,038.90, 105,069,058.35 and 66,077,946.10 is: 99,116,919.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,046,038.90 : 105,069,058.35 = 66,077,946.10 : x
  2. Step 2: Convert to fraction form
    70,046,038.90/105,069,058.35 = 66,077,946.10/x
  3. Step 3: Cross multiply
    70,046,038.90x = 105,069,058.35 × 66,077,946.10
  4. Step 4: Simplify right side
    70,046,038.90x = 6,942,747,574,429,055
  5. Step 5: Solve for x
    x = 6,942,747,574,429,055/70,046,038.90
  6. Step 6: Final answer
    x = 99,116,919.15

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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.