Finding the Fourth Proportional to 781,258,583.25, 1,176,564,636.35 and 711,522,895.23
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Solution
The fourth proportional to 781,258,583.25, 1,176,564,636.35 and 711,522,895.23 is: 1,071,543,653.31
Step by Step Solution
- Step 1: Write the proportion equation
781,258,583.25 : 1,176,564,636.35 = 711,522,895.23 : x - Step 2: Convert to fraction form
781,258,583.25/1,176,564,636.35 = 711,522,895.23/x - Step 3: Cross multiply
781,258,583.25x = 1,176,564,636.35 × 711,522,895.23 - Step 4: Simplify right side
781,258,583.25x = 837,152,676,477,426,560 - Step 5: Solve for x
x = 837,152,676,477,426,560/781,258,583.25 - Step 6: Final answer
x = 1,071,543,653.31
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.