Finding the Fourth Proportional to 1,069,698,909.20, 1,475,963,440.50 and 617,569,041.68
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Solution
The fourth proportional to 1,069,698,909.20, 1,475,963,440.50 and 617,569,041.68 is: 852,117,656.35
Step by Step Solution
- Step 1: Write the proportion equation
1,069,698,909.20 : 1,475,963,440.50 = 617,569,041.68 : x - Step 2: Convert to fraction form
1,069,698,909.20/1,475,963,440.50 = 617,569,041.68/x - Step 3: Cross multiply
1,069,698,909.20x = 1,475,963,440.50 × 617,569,041.68 - Step 4: Simplify right side
1,069,698,909.20x = 911,509,327,505,643,904 - Step 5: Solve for x
x = 911,509,327,505,643,904/1,069,698,909.20 - Step 6: Final answer
x = 852,117,656.35
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.